Optical filter, laser module, and wavelength locker module

Details Optical filter, laser module, and wavelength locker module Optical filter, laser module, and wavelength locker module

2005-07-05

2005-07-05

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular component circuitry

Having feedback circuitry

C385S027000

Reexamination Certificate

active

06914921

ABSTRACT:
On a second thermo-module there are disposed a prism, an optical filter, and a sub-mount, via a base respectively. On the front side of the sub-mount, there are disposed a first photodetector and a second photodetector. The optical filter is structured with a crystal member that satisfies a condition that α+(1
0)×(Δn/ΔT) becomes not more than 3.5, where α is a coefficient of linear expansion, n0is a refractive index at a normal temperature, and Δn is a change of a refractive index corresponding to a temperature variation ΔT.

REFERENCES:
patent: 4517456 (1985-05-01), Halsall et al.
patent: 4713820 (1987-12-01), Morris et al.
patent: 4938836 (1990-07-01), Carenco et al.
patent: 4998256 (1991-03-01), Ohshima et al.
patent: 6078598 (2000-06-01), Ohtsuki et al.
patent: 6094271 (2000-07-01), Maeda
patent: 6259711 (2001-07-01), Laurell
patent: 6345060 (2002-02-01), Copner et al.
patent: 6469593 (2002-10-01), Nishizawa et al.
patent: 6483735 (2002-11-01), Rentzepis
patent: 6567437 (2003-05-01), Imaki et al.
patent: 6597712 (2003-07-01), Tatsuno et al.
patent: 6765940 (2004-07-01), Short
patent: 0 818 857 (1998-01-01), None
patent: 2 268 323 (1994-01-01), None
patent: 2-257686 (1990-10-01), None
patent: 2000101175 (2000-04-01), None
Tatsuya Kimura, et al., “Temperature Compensation of Birefringent Optical Filters”, Proceedings of the IEEE, vol. 59, No. 8, XP-001078997, Aug. 1971, pp. 1273-1274.
K. Tatsuno et al., “50 GHz SpaciNg, Multi-wavelength Tunable Locker Integrated in a Transmitter Module with a Monolithic-Modulator and a DFB-Laser” (2001) Technical Digest Series Conf. Ed. pp. TuB5-1 to TuB5-4.

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