Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1996-09-04
1998-07-21
Bacares, Rafael
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
356163, H04B 1000, H04J 1402
Patent
active
057841837
ABSTRACT:
A semiconductor optical device fabricating method for easily fabricating on a single substrate a plurality of distributed feedback lasers or distributed Bragg reflector lasers with uniform static and dynamic properties and individually different oscillation wavelengths. A plurality of pairs of stripe type insulating thin film masks are formed over that region of the semiconductor substrate which has optical waveguides formed therein for the lasers. Each pair of stripe type masks has a constant gap therebetween. With the masks in place, optical waveguide layers for the lasers are grown in crystallized fashion through metal organic vapor epitaxy. The stripe type masks in pairs differ dimensionally from one another. The semiconductor optical device thus fabricated comprises on one semiconductor substrate a plurality of distributed feedback lasers or distributed Bragg reflector lasers whose optical waveguide layers differ in both film thickness and composition and whose oscillation wavelengths also differ from one another.
REFERENCES:
patent: 4914607 (1990-04-01), Blonder et al.
patent: 5351262 (1994-09-01), Poguntke et al.
patent: 5384797 (1995-01-01), Welch et al.
patent: 5394489 (1995-02-01), Koch
patent: 5412678 (1995-05-01), Treat et al.
patent: 5465283 (1995-11-01), Bour et al.
patent: 5565693 (1996-10-01), Sasaki et al.
Aoki et al, Novel Structure MQW Electroabsorption Modulator /DFB-Laser Integrated, Electronic Letters vol. 27 No. 23 pp. 2138-2140, Nov. 1991.
Monolithic Integrated Multi-wavelength DFB Laser Arrays and Star Couplers WDM Lightwave Systems by Chung-En Zah and Tien Pei Lee, Prior Art (1).
Lasing Wavelength Control for DBR Lasers Using Selective MOVPE Growth, Prior Art (2).
Aoki Masahiro
Suzuki Makoto
Taniwatari Tsuyoshi
Tsutsui Takayuki
Bacares Rafael
Hitachi , Ltd.
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