CN203883841U

CN203883841U - Dual-wavelength simultaneous test insertion loss and return loss tester

Info

Publication number: CN203883841U
Application number: CN201420158837.4U
Authority: CN
Inventors: 周永军
Original assignee: ZHENJIANG OFT OPTOELECTRONIC TECH Co Ltd
Current assignee: ZHENJIANG OFT OPTOELECTRONIC TECH Co Ltd
Priority date: 2014-04-03
Filing date: 2014-04-03
Publication date: 2014-10-15
Anticipated expiration: 2024-04-03

Abstract

The utility model discloses a dual-wavelength simultaneous test insertion loss and return loss tester which comprises a central processing unit. The central processing unit is connected onto a wavelength division multiplexer through a 1310nm optical transmitting module and a 1550nm optical transmitting module separately. The output end of the wavelength division multiplexer signal is connected with an optical splitter. The output end of the optical splitter is connected onto the front end surface of a tested jumper wire. The return loss signal end of the optical splitter is connected with a return loss test module. Information transmission is directly performed between the return loss test module and the central processing unit. By adopting structure, the transmitted signals of the optical transmitting modules can be transmitted to the optical splitter through the wavelength division multiplexer, and then transmitted to the front end surface of the tested jumper wire through a connector and a test line, the CPU is connected with the return loss test module, so 1310nm and 1550nm pulse signals can be transmitted in turn through the linkage with the CPU, and at the same time, tests of 1310nm and 1550nm wavelengths are performed, the optical performance of the optical fiber jumper wire at two wavelengths including 1310nm and 1550nm can be tested at the same time, so the product test efficiency can be greatly improved.

Description

The Insertion Loss return loss test set of dual wavelength synchronism detection

Technical field

The utility model relates to a kind of equipment for optical fiber connector test, and specifically a kind of Insertion Loss return loss test set of dual wavelength synchronism detection, belongs to technical field of optical fiber communication.

Background technology

Optical fiber communication has signal stabilization, loss is little, transmission range is long, the high many-sided advantage of capacity, in various countries' modern communication networks is built, has extensively adopted standby.Current, the Networks of Fiber Communications construction of China is swift and violent, and three large operators and Broadcast and TV system have all been determined the thinking of " accelerate light entering and copper back, advance Access Network strategic transformation ".Fiber active linker is the same with optical fiber, belongs to part the most basic in Networks of Fiber Communications, has huge demand in Networks of Fiber Communications.The relevant authorities of country have also formulated multinomial industry standard for fiber active linker, and its performance index have been made to concrete regulation.Industry standard regulation, the optical property Interventions Requested before fiber active linker dispatches from the factory are insertion loss and return loss.

The exfactory inspection of optical fiber connector manufacturer is mainly to utilize Insertion Loss return loss test set to carry out the performance index of detection fiber connector.The conventional communication window of China's Networks of Fiber Communications is mainly 1310nm and 1550nm at present, on market, existing Insertion Loss return loss test set can carry out the test of these two wavelength, but can only test a wavelength at every turn, if need to test the index of two wavelength, just need to carry out twice test.

Summary of the invention

The technical problems to be solved in the utility model is to provide a kind of Insertion Loss return loss test set of efficient dual wavelength synchronism detection of the optical property that can simultaneously test two wavelength.

In order to solve the problems of the technologies described above, the Insertion Loss return loss test set of dual wavelength synchronism detection of the present utility model, comprise central processing unit, central processing unit is connected on wavelength division multiplexer by a 1310nm light emission module and a 1550nm light emission module respectively, the output of wavelength division multiplexer signal connects optical branching device, the output of optical branching device is connected on the front end face of tested wire jumper, and the return loss signal end of optical branching device connects return loss test module; Return loss test module directly and central processing unit carry out communication.The rear end face of described tested wire jumper connects Insertion Loss test module, and Insertion Loss test module is connected with central processing unit.

Described optical branching device is connected the front end face of tested wire jumper with p-wire by joint.

Adopt after above-mentioned structure, because central processing unit is connected on wavelength division multiplexer by a 1310nm light emission module and a 1550nm light emission module respectively, transmitting of light emission module can be transferred to optical branching device by wavelength division multiplexer, then process joint and p-wire are to the front end face of tested wire jumper, CPU connects return loss test module, thus can by with the mode of CPU interlock, launch in turn 1310nm, 1550nm pulse signal, carry out the test of 1310nm and 1550nm wavelength simultaneously, realize the optical property of while measuring fiber wire jumper at 1310nm and two wavelength of 1550nm, greatly improving product testing efficiency.

Brief description of the drawings

Fig. 1 is the theory diagram of the Insertion Loss return loss test set of the utility model dual wavelength synchronism detection.

Embodiment

Below in conjunction with the drawings and specific embodiments, the Insertion Loss return loss test set of dual wavelength synchronism detection of the present utility model is described in further detail.

As shown in the figure, the Insertion Loss return loss test set of dual wavelength synchronism detection of the present utility model, comprise central processing unit (CPU), central processing unit is connected on wavelength division multiplexer (WDM) with a 1550nm light emission module by a 1310nm light emission module respectively; The output of wavelength division multiplexer signal connects optical branching device (high return loss optical branching device), the output of high return loss optical branching device is connected on the front end face of tested wire jumper by FC/APC joint and p-wire, and the return loss signal end of high return loss optical branching device connects return loss test module; Return loss test module directly and central processing unit carry out communication.Further can also connect Insertion Loss test module at the rear end face of tested wire jumper, Insertion Loss test module is connected with central processing unit.

Its operation principle is as follows:

When test, first standard testing line APC end is connected with standard FC/APC joint of tester, other end access Insertion Loss test module carries out the demarcation of Insertion Loss testing light source, again the other end access delustring module of standard testing line is carried out to the demarcation of return loss, after staking-out work finishes, the A end of tested wire jumper can be connected with standard testing line, B termination enters Insertion Loss test module, shows the Insertion Loss value of two wavelength of tested wire jumper A end on screen; The B termination of tested wire jumper is entered to delustring module, on screen, show the return loss value at two wavelength places of tested wire jumper A end, in the time of test, 1310nm laser (light emission module) and 1550nm laser are controlled by CPU, with return loss test module and the interlock of Insertion Loss test module, transmitted pulse signal in turn, and the test result of two wavelength is simultaneously displayed on screen.

Claims

1. the Insertion Loss return loss test set of a dual wavelength synchronism detection, it is characterized in that: comprise central processing unit, central processing unit is connected on wavelength division multiplexer by a 1310nm light emission module and a 1550nm light emission module respectively, the output of described wavelength division multiplexer signal connects optical branching device, the output of described optical branching device is connected on the front end face of tested wire jumper, and the return loss signal end of optical branching device connects return loss test module; Described return loss test module directly and central processing unit carry out communication.

2. according to the Insertion Loss return loss test set of dual wavelength synchronism detection claimed in claim 1, it is characterized in that: the rear end face of described tested wire jumper connects Insertion Loss test module, and Insertion Loss test module is connected with central processing unit.

3. according to the Insertion Loss return loss test set of dual wavelength synchronism detection claimed in claim 1, it is characterized in that: described optical branching device is connected the front end face of tested wire jumper with p-wire by joint.