Depolarized laser diode module and depolarized laser diode...

Details Depolarized laser diode module and depolarized laser diode... Depolarized laser diode module and depolarized laser diode...

2006-07-04

2006-07-04

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular beam control device

Optical output stabilization

C372S006000, C359S341100, C359S333000

Reexamination Certificate

active

07072369

ABSTRACT:
The present invention provides the following designing method: in a laser diode module or a depolarized laser diode module which has one laser diode and one polarization maintaining fiber connected to the output side thereof, the length of the polarization maintaining fiber is a value obtained by calculation of equation 37 with use of a longitudinal mode spacing Δλoutput light from the Fabry Perot (FP) laser diode, an oscillating center wavelength λ0of the laser light, a beat length LBeat 1of the polarization maintaining fiber and an optical wavelength λBeatused in the measurement of the LBeat 1. (Equation 37)LPig<λ02Δλ×LBeat⁢⁢1λBeat⁢⁢1

REFERENCES:
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patent: 2002-31735 (2002-01-01), None
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Yoshihiro Emori et al, “Cost-effective depolarized diode pump unit designed for C-band flat-gain Raman amplifiers to control EDFA fain profile”, Optical Fiber Communication Conference.(OFC). Technical Digest Postconference Eddition. vol. 4 of 4, Mar. 7, 2000, pp. 106-108.

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