DocumentCode :
3525590
Title :
High gain and low operation current spot-size-converter integrated semiconductor optical amplifier for switching gate application
Author :
Tamanuki, Takemasa ; Kitamura, Shotaro ; Hatakeyama, Hiroshi ; Sasaki, Tatsuya
Author_Institution :
Optoelectron. & High Frequency Dev. Res. Lab., NEC Corp., Tsukuba, Japan
Volume :
2
fYear :
1999
fDate :
18-22 Oct. 1999
Firstpage :
1450
Abstract :
Spot-size-converter integrated semiconductor optical amplifiers have been developed as gate elements for optical switch matrices and an S-shape waveguide has been introduced to prevent re-coupling of unguided light to the output fiber. It was found that an angled-facet structure effectively suppressed light reflection at the end facets. Consequently, a high extinction ratio of 70 dB and a high fiber-to-fiber gain of 20 dB with gain saturation of 4.5 dBm were achieved. Sufficient optical coupling characteristics to a flat-ended single-mode fiber with a coupling loss of 3.5 dB were also demonstrated.
Keywords :
III-V semiconductors; MOCVD; gallium arsenide; gallium compounds; indium compounds; light reflection; optical beam splitters; optical communication equipment; optical couplers; optical fabrication; optical fibre couplers; optical fibre losses; optical planar waveguides; optical saturation; optical switches; semiconductor optical amplifiers; vapour phase epitaxial growth; 20 dB; 3.5 dB; GaInAsP-InP; GaInAsP/InP based polarization insensitive semiconductor optical amplifiers; S-shape waveguide; angled-facet structure; coupling loss; end facets; extinction ratio; fiber-to-fiber gain; flat-ended single-mode fiber; gain saturation; gate elements; high gain; integrated semiconductor optical amplifier; light reflection; low operation current; optical coupling characteristics; optical switch matrices; output fiber; spot-size-converter integrated semiconductor optical amplifier; switching gate application; unguided light; Extinction ratio; Gain; Optical coupling; Optical fiber losses; Optical reflection; Optical switches; Optical waveguides; Semiconductor optical amplifiers; Semiconductor waveguides; Transmission line matrix methods;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, 1999. APCC/OECC '99. Fifth Asia-Pacific Conference on ... and Fourth Optoelectronics and Communications Conference
Conference_Location :
Beijing, China
Print_ISBN :
7-5635-0402-8
Type :
conf
DOI :
10.1109/APCC.1999.820550
Filename :
820550
Link To Document :
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