Optical insertion and return loss tester
A tester and insertion return loss technology, applied in the field of circuit modules, can solve the problems of manual calculation, complicated operation of return loss tester, high price, etc., and achieve the effect of fast running speed, small error and low cost
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[0010] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0011] Depend on figure 1 It can be seen that the present invention includes: a dual-wavelength laser LD; the dual-wavelength laser LD is connected to an optical coupler through an optical path; the optical coupler is connected to a flange through an optical path; the flange is connected to an optical coupler through an optical path; The device is connected with the second detector PD_B through the optical path; the dual-wavelength laser LD is connected with the MCU through the LD drive circuit; the second detector PD_B is connected with the MCU through the amplifier circuit and the analog-to-digital conversion circuit; the amplifier circuit and the analog The digital conversion circuit is also connected with the first detector PD_A;
[0012] The MCU is also connected with the LCD display.
[0013] Flange, optical coupler, two PDs in the prese...
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