IT1296646B1 - Circuito opto-elettronico divisore di frequenza e relativo procedimento di impiego. - Google Patents
Circuito opto-elettronico divisore di frequenza e relativo procedimento di impiego.Info
- Publication number
- IT1296646B1 IT1296646B1 IT97TO001097A ITTO971097A IT1296646B1 IT 1296646 B1 IT1296646 B1 IT 1296646B1 IT 97TO001097 A IT97TO001097 A IT 97TO001097A IT TO971097 A ITTO971097 A IT TO971097A IT 1296646 B1 IT1296646 B1 IT 1296646B1
- Authority
- IT
- Italy
- Prior art keywords
- opto
- frequency
- electronic circuit
- related procedure
- circuit divider
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0075—Arrangements for synchronising receiver with transmitter with photonic or optical means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/505—Laser transmitters using external modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/505—Laser transmitters using external modulation
- H04B10/5053—Laser transmitters using external modulation using a parallel, i.e. shunt, combination of modulators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/505—Laser transmitters using external modulation
- H04B10/5057—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output
- H04B10/50577—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output to control the phase of the modulating signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/08—Time-division multiplex systems
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Circuits Of Receivers In General (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT97TO001097A IT1296646B1 (it) | 1997-12-16 | 1997-12-16 | Circuito opto-elettronico divisore di frequenza e relativo procedimento di impiego. |
US09/199,144 US6204956B1 (en) | 1997-12-16 | 1998-11-24 | Opto-electronic frequency divider circuit and method of operating same |
JP10375042A JP3000551B2 (ja) | 1997-12-16 | 1998-12-14 | 光電式周波数分割器回路及びその操作方法 |
EP98123513A EP0924552A3 (en) | 1997-12-16 | 1998-12-15 | Opto-electronic frequency divider circuit and method of operating same |
DE0924552T DE924552T1 (de) | 1997-12-16 | 1998-12-15 | Opto-electronische Frequenzteilerschaltung und deren Betriebsverfahren |
CA002256188A CA2256188C (en) | 1997-12-16 | 1998-12-15 | Opto-electronic frequency divider circuit and method of operating same |
US09/766,683 US6323991B2 (en) | 1997-12-16 | 2001-01-17 | Opto-electronic frequency divider circuit and method of operating same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT97TO001097A IT1296646B1 (it) | 1997-12-16 | 1997-12-16 | Circuito opto-elettronico divisore di frequenza e relativo procedimento di impiego. |
Publications (2)
Publication Number | Publication Date |
---|---|
ITTO971097A1 ITTO971097A1 (it) | 1999-06-16 |
IT1296646B1 true IT1296646B1 (it) | 1999-07-14 |
Family
ID=11416205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT97TO001097A IT1296646B1 (it) | 1997-12-16 | 1997-12-16 | Circuito opto-elettronico divisore di frequenza e relativo procedimento di impiego. |
Country Status (6)
Country | Link |
---|---|
US (2) | US6204956B1 (it) |
EP (1) | EP0924552A3 (it) |
JP (1) | JP3000551B2 (it) |
CA (1) | CA2256188C (it) |
DE (1) | DE924552T1 (it) |
IT (1) | IT1296646B1 (it) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1296646B1 (it) * | 1997-12-16 | 1999-07-14 | Cselt Centro Studi Lab Telecom | Circuito opto-elettronico divisore di frequenza e relativo procedimento di impiego. |
US6320692B1 (en) * | 1998-11-27 | 2001-11-20 | Pirelli Cavi E Sistemi S.P.A. | Biasing system for an optical modulator with double output |
JP2001177475A (ja) * | 1999-12-17 | 2001-06-29 | Kddi Corp | 波長分散補償装置、光受信装置及び光受信端局 |
GB0012554D0 (en) * | 2000-05-24 | 2000-07-12 | Bae Systems Electronics Limite | Improvements in or relating to optical delay lines |
CA2310199A1 (en) * | 2000-05-29 | 2001-11-29 | Tellamon Photonic Networks Inc. | Multi-wavelength lasers |
US6456685B1 (en) * | 2000-06-29 | 2002-09-24 | Axe, Inc. | Method and apparatus for cutting waveguides to precise differential lengths using time-domain-reflectometry |
US20020141027A1 (en) * | 2001-02-20 | 2002-10-03 | Lagasse Michael J. | Variable pulse width optical pulse generation with superposed multiple frequency drive |
US20020136479A1 (en) * | 2001-02-20 | 2002-09-26 | Simon Verghese | Tunable pulse width optical pulse generator |
US6470063B2 (en) * | 2001-03-12 | 2002-10-22 | Oak Technology, Inc. | Method and device to update data transfer count for disc drive |
US6665368B2 (en) * | 2001-08-24 | 2003-12-16 | Northrop Grumman | Apparatus and method for increasing the maximum input frequency of a frequency divider |
US6826207B2 (en) * | 2001-12-17 | 2004-11-30 | Peleton Photonic Systems Inc. | Multi-wavelength laser source based on two optical laser beat signal and method |
US7295584B2 (en) * | 2001-12-17 | 2007-11-13 | Peleton Photonic Systems | System and method for generating multi-wavelength laser source using highly nonlinear fiber |
US7362976B2 (en) * | 2002-08-22 | 2008-04-22 | Main Street Ventures Llc | Generating of high rate modulated pulse streams |
AU2002307214A1 (en) * | 2002-04-09 | 2003-10-27 | Axe, Inc. | Tunable pulse width optical pulse generator |
US20040047633A1 (en) * | 2002-09-06 | 2004-03-11 | Takeshi Hoshida | System and method for high bit-rate optical time division multiplexing (OTDM) |
EP1578040B1 (en) * | 2004-03-11 | 2009-03-04 | Alcatel Lucent | Method and system for generating CS-RZ pulses showing narrow width of bit duration |
US7689132B2 (en) * | 2005-06-07 | 2010-03-30 | Industrial Technology Research Institute | Interference-rejection coding method for an optical wireless communication system and the optical wireless communication system thereof |
US8238014B2 (en) * | 2008-09-08 | 2012-08-07 | Luxtera Inc. | Method and circuit for encoding multi-level pulse amplitude modulated signals using integrated optoelectronic devices |
US9768873B2 (en) * | 2013-09-17 | 2017-09-19 | California Institute Of Technology | Amplification-free electro-optical oscillator |
US9900096B2 (en) | 2013-09-17 | 2018-02-20 | California Institute Of Technology | Optically assisted electrical filtering and processing |
US9112483B1 (en) | 2013-09-23 | 2015-08-18 | Lockheed Martin Corporation | Offset regenerative frequency divider |
US11728896B2 (en) * | 2020-11-19 | 2023-08-15 | California Institute Of Technology | Wavelength division multiple access for long range optical communications |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05323245A (ja) | 1992-05-18 | 1993-12-07 | Nec Corp | 光変調制御方式 |
US5532857A (en) | 1994-09-07 | 1996-07-02 | Ael Industries, Inc. | Wide dynamic range optical link using DSSC linearizer |
GB2293684B (en) | 1994-09-27 | 1998-10-14 | Northern Telecom Ltd | An interfermetric multiplexer |
US5532867A (en) * | 1995-06-06 | 1996-07-02 | Hughes Aircraft Company | Bias stabilization circuit and method for a linearized directional coupler modulator |
JPH09102776A (ja) | 1995-10-05 | 1997-04-15 | Hitachi Ltd | 光クロック信号抽出回路 |
EP0900489B1 (en) | 1996-05-22 | 2006-01-25 | BRITISH TELECOMMUNICATIONS public limited company | Optical synchronisation arrangement |
IT1296646B1 (it) * | 1997-12-16 | 1999-07-14 | Cselt Centro Studi Lab Telecom | Circuito opto-elettronico divisore di frequenza e relativo procedimento di impiego. |
-
1997
- 1997-12-16 IT IT97TO001097A patent/IT1296646B1/it active IP Right Grant
-
1998
- 1998-11-24 US US09/199,144 patent/US6204956B1/en not_active Expired - Lifetime
- 1998-12-14 JP JP10375042A patent/JP3000551B2/ja not_active Expired - Fee Related
- 1998-12-15 EP EP98123513A patent/EP0924552A3/en not_active Withdrawn
- 1998-12-15 DE DE0924552T patent/DE924552T1/de active Pending
- 1998-12-15 CA CA002256188A patent/CA2256188C/en not_active Expired - Fee Related
-
2001
- 2001-01-17 US US09/766,683 patent/US6323991B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20010024315A1 (en) | 2001-09-27 |
EP0924552A3 (en) | 1999-07-07 |
US6323991B2 (en) | 2001-11-27 |
JP3000551B2 (ja) | 2000-01-17 |
ITTO971097A1 (it) | 1999-06-16 |
JPH11271697A (ja) | 1999-10-08 |
CA2256188C (en) | 2002-02-12 |
DE924552T1 (de) | 2000-03-02 |
CA2256188A1 (en) | 1999-06-16 |
US6204956B1 (en) | 2001-03-20 |
EP0924552A2 (en) | 1999-06-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |