TWI569591B - Radio-over-fiber transport systems with phase modulation to intensity modulation converter - Google Patents

Radio-over-fiber transport systems with phase modulation to intensity modulation converter Download PDF

Info

Publication number
TWI569591B
TWI569591B TW103115445A TW103115445A TWI569591B TW I569591 B TWI569591 B TW I569591B TW 103115445 A TW103115445 A TW 103115445A TW 103115445 A TW103115445 A TW 103115445A TW I569591 B TWI569591 B TW I569591B
Authority
TW
Taiwan
Prior art keywords
phase modulation
optical
converter
signal
cavity surface
Prior art date
Application number
TW103115445A
Other languages
Chinese (zh)
Other versions
TW201541881A (en
Inventor
張慶鴻
張瑞軒
Original Assignee
張慶鴻
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 張慶鴻 filed Critical 張慶鴻
Priority to TW103115445A priority Critical patent/TWI569591B/en
Publication of TW201541881A publication Critical patent/TW201541881A/en
Application granted granted Critical
Publication of TWI569591B publication Critical patent/TWI569591B/en

Links

Landscapes

  • Optical Communication System (AREA)

Description

相位調變轉強度調變轉換器的光纖微波網路傳輸系統 Optical fiber microwave network transmission system for phase modulation to variable intensity modulation converter

本發明為光纖通訊技術領域，而本發明是以相位調變器為基礎得光纖微波傳輸系統為主體，並混合創新的相位調變器轉強度調變器系統一光纖微波網路傳輸系統架構 The invention is in the field of optical fiber communication technology, and the invention is based on a phase modulation device and a fiber optic microwave transmission system as a main body, and an innovative phase modulator tortoise intensity modulation system-a fiber-optic microwave network transmission system architecture

PM在基於光載微波傳輸系統中，PM輸出多個光邊帶，然而他們的通過PD解調變後只能產生一個直流輸出，因為其光電轉換信號擁有相同的振幅但反向的相位。因此，PM信號需要在信號通過PD解調變之前被轉換成IM的信號格式。傳統上，PM轉IM是通過穿過延遲線(DI)干涉儀來實現。然而，DI本身的複雜性所導致的高成本使得添加DI到光傳輸系統嚴重阻礙PM計劃的推進。為解決此問題，光纖布拉格光柵(FBG)、光帶通濾波器(OBPF)或專用光學色散設備也都被使用在PM轉IM系統中。 In PM-based optical transmission systems, PM outputs multiple optical sidebands. However, they can only produce one DC output after PD demodulation because their photoelectric conversion signals have the same amplitude but opposite phase. Therefore, the PM signal needs to be converted to the IM signal format before the signal is demodulated by PD. Traditionally, PM to IM is achieved by passing through a delay line (DI) interferometer. However, the high cost caused by the complexity of DI itself makes the addition of DI to the optical transmission system seriously hinder the advancement of the PM program. To solve this problem, fiber Bragg grating (FBG), optical band pass filter (OBPF) or dedicated optical dispersion devices are also used in the PM to IM system.

以PM為為基礎的RoF傳輸系統，以創新PM到IM轉換器提供一個經濟，靈活的網絡結構。在這個提案中，根據垂直共振腔面射型雷射(VCSEL)諧振腔的特性，垂直共振腔面射型雷射(VCSEL)被當作可調式光帶通濾波器(Tunable Optical band-pass Filter,TOBPF)，用來衰減PM信號的中心和一個諧波的強度。通過修改垂直共振腔面射型雷射(VCSEL)的驅動電流，可調範圍超過350-GHz以取代在公佈的PM計劃的可調式光帶通濾波器(TOBPF)的功能。通過將創新性的PM-到-IM轉換器轉換成60公里到達的PM為基礎的光載無線傳輸系統，由一個垂直共振腔面射型雷射(VCSEL)實現可調PM到IM的轉換。一個創新的長距離光纖微波傳輸系統。 The PM-based RoF transmission system provides an economical and flexible network structure with innovative PM to IM converters. In this proposal, a vertical cavity surface-emitting laser (VCSEL) is used as a tunable optical band-pass filter based on the characteristics of a vertical cavity surface-emitting laser (VCSEL) resonator. , TOBPF), used to attenuate the center of the PM signal and the intensity of a harmonic. By modifying the drive current of the vertical cavity surface-emitting laser (VCSEL), the adjustable range is over 350-GHz to replace the function of the tunable Optical Bandpass Filter (TOBPF) in the published PM program. The tunable PM to IM conversion is achieved by a vertical cavity surface-emitting laser (VCSEL) by converting an innovative PM-to-IM converter into a 60-kilometer PM-based optical-borne wireless transmission system. An innovative long-haul fiber optic microwave transmission system.

1‧‧‧可調式PM轉IM轉換器(Tunable PM-to-IM Converter) 1‧‧‧Tunable PM-to-IM Converter

A‧‧‧訊號產生裝置 A‧‧‧Signal generating device

PM‧‧‧相位調變裝置 PM‧‧‧ phase modulation device

OC‧‧‧光學循環器 OC‧‧‧Optical Circulator

i‧‧‧輸入端 I‧‧‧ input

ii‧‧‧輸出端 Ii‧‧‧output

VCSEL‧‧‧垂直共振腔面射型雷射 VCSEL‧‧‧Vertical cavity surface-emitting laser

PD‧‧‧光學偵測器 PD‧‧‧ optical detector

PC‧‧‧極化控制器 PC‧‧‧Polarization controller

圖一：是本發明所提出相位調變轉強度調變轉換器的光纖微波網路傳輸系統實驗架構圖 Figure 1 : Experimental architecture diagram of the fiber-optic microwave network transmission system of the phase modulation to variable intensity modulation converter proposed by the present invention

圖二：垂直共振腔面射型雷射(VCSEL)在不同電流下的輸出光譜 Figure 2 : Output spectrum of a vertical cavity surface-emitting laser (VCSEL) at different currents

圖三：(a)PM的輸出光譜，PM轉IM的輸出光譜在(b)2 mA(c)3mA(d)4mA(e)5mA (f)6mA(g)7mA(h)8mA的垂直共振腔面射型雷射(VCSEL)驅動電流下。 Figure 3 : (a) PM output spectrum, PM to IM output spectrum at (b) 2 mA (c) 3 mA (d) 4 mA (e) 5 mA (f) 6 mA (g) 7 mA (h) 8 mA vertical resonance Cavity surface type laser (VCSEL) drives current.

圖四：以PM為基礎的光纖微波網路並使用可調式PM轉IN轉換器的實驗裝置 Figure 4 : Experimental setup of a PM-based fiber-optic microwave network using a tunable PM-to-IN converter

圖五：接收1.25-Gbps/10-GHz的下行訊號光譜圖 Figure 5 : Received 1.25-Gbps/10-GHz downlink signal spectrum

圖六：在傳輸1.25-Gbps/10-GHz信號的(Back to Back)BTB和60公里傳輸方案，測得的誤碼率曲線和相應的眼圖。 Figure 6 : The measured bit error rate curve and corresponding eye diagram for the transmission of the 1.25-Gbps/10-GHz (Back to Back) BTB and 60 km transmission scheme.

本發明提供一種相位調變轉強度調變轉換器的光纖微波網路傳輸系統，請參酌圖1至圖6，在該設置中，包括：一訊號產生裝置A、一相位調變裝置PM、一光學循環器OC、一極化控制器PC、一垂直共振腔面射型雷射VCSEL及一光學偵測器PD，該訊號產生裝置A與該相位調變裝置PM訊號連接，該相位調變裝置PM與該光學循環器OC之一輸入端i訊號連接，該光學循環器OC另連接該垂直共振腔面射型雷射VCSEL，該極化控制器PC係連接設置於該光學循環器OC與該垂直共振腔面射型雷射VCSEL之間，該光學循環器OC之一輸出端ii係訊號連接該光學偵測器PD，較佳的，該垂直共振腔面射型雷射VCSEL、該極化控制器PC及該光學循環器OC合稱為一可調式相位調變轉強度調變轉換器1；本案詳細作動方式說明如下，請參酌圖4，通過用一個 10-GHz的正弦信號混合1.25Gbps的偽隨機二進制序列流中獲得的RF信號是經由PM調製的下行光載波(λ ¼1545.37nm)的第一階段。隨後，在經過60公里的SMF後PM信號被傳送到其目的地。當下行光波到達接收端時，光載波將通過摻鉺光纖放大器(EDFA)放大，以補償傳輸損耗，然後通過一個光帶通濾波器，減少從摻鉺光纖放大器所放大的雜訊。之後該光波被送入可調的PM-到-IM轉換器，接著通過一個20GHz的的PD檢測所獲得的1.25-Gbps/10-GHz信號，信號與10-GHz的正弦信號混合並通過一個低通濾波器對信號進行濾波以去除雜散數據隨後降頻轉換到基帶。最後利用電子頻譜分析和誤碼率測試儀來評估其電信號的頻譜，眼圖和誤碼率。 The invention provides a fiber optic microwave network transmission system of a phase modulation to variable intensity modulation converter. Please refer to FIG. 1 to FIG. 6 , in which the device includes: a signal generating device A, a phase modulation device PM, and a The optical circulator OC, a polarization controller PC, a vertical cavity surface-emitting laser VCSEL, and an optical detector PD, the signal generating device A is connected to the phase modulation device PM signal, and the phase modulation device The PM is connected to one of the input terminals i of the optical circulator OC, and the optical circulator OC is further connected to the vertical cavity surface-emitting laser VCSEL, and the polarization controller PC is connected to the optical circulator OC and the Between the vertical cavity surface-emitting laser VCSELs, one of the optical circulators OC output ii is connected to the optical detector PD, preferably, the vertical cavity surface-emitting laser VCSEL, the polarization The controller PC and the optical circulator OC are collectively referred to as an adjustable phase modulation tonal intensity modulation converter 1; the detailed operation mode of the present case is as follows, please refer to FIG. 4, by using one The RF signal obtained in a 10-GHz sinusoidal signal mixed with a 1.25 Gbps pseudo-random binary sequence stream is the first stage of the PM-modulated downstream optical carrier (λ 1⁄415 45.37 nm). The PM signal is then transmitted to its destination after a 60 km SMF. When the downstream light wave reaches the receiving end, the optical carrier will be amplified by an erbium doped fiber amplifier (EDFA) to compensate for the transmission loss, and then passed through an optical bandpass filter to reduce the noise amplified from the erbium doped fiber amplifier. The light is then sent to an adjustable PM-to-IM converter, followed by a 1.25-Gbps/10-GHz signal obtained by a 20 GHz PD detection, which is mixed with a 10-GHz sinusoidal signal and passed through a low The pass filter filters the signal to remove spurious data and then downconverts to baseband. Finally, electronic spectrum analysis and bit error rate tester are used to evaluate the spectrum, eye diagram and bit error rate of the electrical signal.

1‧‧‧可調式PM轉IM轉換器(Tunable PM-to-IM Converter) 1‧‧‧Tunable PM-to-IM Converter

A‧‧‧訊號產生裝置 A‧‧‧Signal generating device

PM‧‧‧相位調變裝置 PM‧‧‧ phase modulation device

OC‧‧‧光學循環器 OC‧‧‧Optical Circulator

i‧‧‧輸入端 I‧‧‧ input

ii‧‧‧輸出端 Ii‧‧‧output

VCSEL‧‧‧垂直共振腔面射型雷射 VCSEL‧‧‧Vertical cavity surface-emitting laser

PD‧‧‧光學偵測器 PD‧‧‧ optical detector

PC‧‧‧極化控制器 PC‧‧‧Polarization controller

Claims (2)

一種相位調變轉強度調變轉換器的光纖微波網路傳輸系統，包含：一可調式相位調變轉強度調變轉換器、一訊號產生裝置、一相位調變裝置，該可調式相位調變轉強度調變轉換器包含一極化控制器、一光學循環器和一垂直共振腔面射型雷射；該訊號產生裝置與該相位調變裝置訊號連接，該相位調變裝置與該光學循環器之一輸入端訊號連接，該光學循環器另連接該垂直共振腔面射型雷射，該極化控制器係連接設置於該光學循環器與該垂直共振腔面射型雷射之間。 A fiber optic microwave network transmission system for a phase modulation to variable intensity modulation converter, comprising: an adjustable phase modulation conversion intensity modulation converter, a signal generating device, and a phase modulation device, the adjustable phase modulation The rotation intensity modulation converter comprises a polarization controller, an optical circulator and a vertical cavity surface-emitting laser; the signal generating device is connected to the phase modulation device signal, and the phase modulation device and the optical cycle One of the input terminals is connected to the signal, and the optical circulator is further connected to the vertical cavity surface-emitting laser, and the polarization controller is connected between the optical circulator and the vertical cavity surface-emitting laser. 如申請專利範圍第1項所述之相位調變轉強度調變轉換器的光纖微波網路傳輸系統，其中，該光學循環器之一輸出端係訊號連接該一光學偵測器。 The optical fiber microwave network transmission system of the phase modulation conversion intensity modulation converter according to claim 1, wherein an output signal of the optical circulator is connected to the optical detector.
TW103115445A 2014-04-30 2014-04-30 Radio-over-fiber transport systems with phase modulation to intensity modulation converter TWI569591B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW103115445A TWI569591B (en) 2014-04-30 2014-04-30 Radio-over-fiber transport systems with phase modulation to intensity modulation converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW103115445A TWI569591B (en) 2014-04-30 2014-04-30 Radio-over-fiber transport systems with phase modulation to intensity modulation converter

Publications (2)

Publication Number Publication Date
TW201541881A TW201541881A (en) 2015-11-01
TWI569591B true TWI569591B (en) 2017-02-01

Family

ID=55220632

Family Applications (1)

Application Number Title Priority Date Filing Date
TW103115445A TWI569591B (en) 2014-04-30 2014-04-30 Radio-over-fiber transport systems with phase modulation to intensity modulation converter

Country Status (1)

Country Link
TW (1) TWI569591B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109004983A (en) * 2018-06-21 2018-12-14 上海第二工业大学 A kind of accurate method for sensing based on phase to intensity modulated transfer principle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7379669B2 (en) * 2002-04-25 2008-05-27 Samsung Electronics Co., Ltd. Method and apparatus for duplex communication in hybrid fiber-radio systems
US20110122912A1 (en) * 2009-11-20 2011-05-26 Benjamin Seldon D Optical transmitters for mm-wave rof systems
US20120263480A1 (en) * 2009-11-11 2012-10-18 Ernesto Ciaramella All-optical phase-modulated data signal regeneration

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7379669B2 (en) * 2002-04-25 2008-05-27 Samsung Electronics Co., Ltd. Method and apparatus for duplex communication in hybrid fiber-radio systems
US20120263480A1 (en) * 2009-11-11 2012-10-18 Ernesto Ciaramella All-optical phase-modulated data signal regeneration
US20110122912A1 (en) * 2009-11-20 2011-05-26 Benjamin Seldon D Optical transmitters for mm-wave rof systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109004983A (en) * 2018-06-21 2018-12-14 上海第二工业大学 A kind of accurate method for sensing based on phase to intensity modulated transfer principle

Also Published As

Publication number Publication date
TW201541881A (en) 2015-11-01

Similar Documents

Publication Publication Date Title
US7761012B2 (en) Optical communication system and method for generating dark return-to zero and DWDM optical MM-Wave generation for ROF downstream link using optical phase modulator and optical interleaver
US20080310464A1 (en) Device for Generating and Modulating a High-Frequency Signal
CN105141365A (en) Device and method for getting delay jitter of optical fiber link
CN106027152A (en) Method for generating 120GHz millimeter waves based on octuple frequency of Mach-Zehnder modulator
Li et al. All-optical microwave photonic single-passband filter based on polarization control through stimulated Brillouin scattering
US10181909B2 (en) Method and apparatus for optical wireless architecture
Zhu et al. Optical millimeter-wave signal generation by frequency quadrupling using one dual-drive Mach–Zehnder modulator to overcome chromatic dispersion
Zhu et al. A novel OCS millimeter-wave generation scheme with data carried only by one sideband and wavelength reuse for uplink connection
Van Kerrebrouck et al. 10 Gb/s radio-over-fiber at 28 GHz carrier frequency link based on 1550 nm VCSEL chirp enhanced intensity modulation after 2 km fiber
US20070104492A1 (en) System for and method of single slideband modulation for analog optical link
TWI569591B (en) Radio-over-fiber transport systems with phase modulation to intensity modulation converter
Gholami et al. 10Gbps parametric short-wave infrared transmitter
Nagatsuma et al. 30-Gbit/s wireless transmission over 10 meters at 300 GHz
Lin et al. Generation of carrier suppressed optical mm-wave signals using frequency quadrupling and no optical filtering
Chaibi et al. Directly-modulated IM/DD OFDM transmission over 100-km SSMF using SSB filtering with two silicon micro-ring resonators
Wen et al. A full-duplex radio-over-fiber system using direct modulation laser to generate optical millimeter-wave and wavelength reuse for uplink connection
Mazur et al. 10 Tb/s self-homodyne 64-QAM superchannel transmission with 4% spectral overhead
CN102436113B (en) Optical quantizer based on non-linear harmonic property of high-speed modulation light transmitting device
WO2020226728A2 (en) Radio frequency to optical transmitter
Zhang et al. Generation of frequency-eightfold millimeter-wave with optical carrier suppression by using one single-drive modulator
Cortés et al. All-optical reconfigurable regenerative RZ to NRZ format converter based on a Mach-Zehnder interferometer and a temporal photonic integrator
AGALLIU Comparison of Modulation Formats in Fiber-Optic Transmission Systems
Lei et al. Chromatic Dispersion Immune Photonic Microwave Frequency Shift Keying Pulse Generator
Yin et al. A novel 16Gb/s free space optical communication scheme for the integration of satellite communication and ranging
Vilar et al. Differential group delay monitoring for high-speed data based on a low-frequency radio-frequency tone power measurement

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees