Laser module

Details Laser module Laser module

2006-08-08

2006-08-08

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular beam control device

Mode discrimination

C372S092000, C372S096000, C372S102000, C372S036000

Reexamination Certificate

active

07088746

ABSTRACT:
Provided is a fiber grating laser for optical communication which can be used as a light source regardless of the occurrence of mode hopping. The laser module comprises a semiconductor optical amplifier device, an optical waveguide such as an optical fiber, and a diffraction grating such as a fiber grating. The semiconductor optical amplifier device has first and second end surfaces. The optical waveguide is optically coupled to the semiconductor optical amplifier device. The diffraction grating is optically coupled to the optical waveguide. The semiconductor optical amplifier device and the diffraction grating constitute an external cavity. An optical cavity length of the external cavity is in a range of 13 millimeters or more but 27 millimeters or less.

REFERENCES:
patent: 6625182 (2003-09-01), Kuksenkov et al.
patent: 2002/0168153 (2002-11-01), Yamabayashi et al.
patent: 2110835 (1983-06-01), None
patent: 2000-082864 (2000-03-01), None
patent: 2002-033553 (2002-01-01), None
patent: 2002-043689 (2002-02-01), None
patent: 2003-008141 (2003-01-01), None
Hashimoto, et al., Uncooled Fiber-Bragg-Grating External-Cavity Semiconductor Laser Module for 1.55 um CWDM Networks, The Institute of Electronics, Information and Communication Engineers, Technical Report of IEICE; pp. 1-6, (2002), (written in Japanese).
Toshio Takagi, et al., “Fiber-Grating External-Cavity Laser Diode Module for 2.5 Gb/s Dense WDM Transmission”, ECOC, Sep. 1998, pp. 81-82.
Takashi Kato, et al., Fiber-Grating Semiconductor Laser Modules for Dense-WDM Systems, pp. 357-359, IEICE Trans. Electron, vol. E82-C, No. 2, Feb. 1999.
G.D. Maxwell, et al., “Demonstration of a semiconductor external cavity laser using a UV written grating in a planar silica waveguide”, Electronics Letters, 1stSep. 1994, vol. 30, No. 18, pp. 1486-1487.
T. Tanaka, et al., “Hybrid integrated external cavity laser without temperature dependent mode hopping”, Electronics Letters, 21stJan. 1999, vol. 35, No. 2, pp. 149-150.
T. Tanaka, et al., “100 GHz-spacing 8-channel light source integrated with gratings and LDs on PLC platform”, The Institute of Electronics, Information and Communication Engineers, Technical Report of IEICE, (2002), pp. 25-29 (written in Japanese) (with English Abstract).
T. Tanaka, et al., “Integrated external cavity laser composed of spot-size converted LD and UV written grating in silica waveguide on Si”, Electronics Letters, 20thJun. 1996, vol. 32, No. 13, pp. 1202-1203.
Hashimoto et al., “Eight-Channel Wavelength Multiplexing With 200-GHz Spacing Using Uncooled Coaxial Fiber Bragg Grating External-Cavity Semiconductor Laser Module”, IEEE Photonics Technology Letters, vol. 14, No. 11, pp. 1617-1619, Nov. 2002.
Translation of portion of Notice of Rejection from JPO.
F.N. Timofeev et al., “10Gbit/s directly modulated, high temperature-stability external fibre grating laser for dense WDM networks”, Electronics Letters vol. 35, No. 20 (1999) p. 1737-1739.

Affiliated with

Also associated with

Rating

Laser module does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laser module, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser module will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3653756