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Direct intensity modulation of three-guide coupled rectangular ring laser having bidirectional lasing characteristics
- Kim, D.G.;
- Kim, S.H.;
- Ki, H.C.;
- Jang, W.-G.;
- Lee, D.-K.;
- ... Choi, Y.W.;
- 외 4명
Citations
SCOPUS
0초록
We investigate the modulation properties of a three-guide coupled rectangular ring laser having bidirectional lasing characteristics. Two different rectangular lasers having active section lengths of 250 and 350 μm and total cavity lengths of 580 and 780 μm are fabricated. The rectangular laser cavity consists of four low loss total internal reflection mirrors and an output coupler made out of three passive coupled waveguides. For both the clockwise and counterclockwise circulating directions, the lasing threshold currents of around 38 mA are obtained at room temperature under continuous wave operation. A 3-dB modulation bandwidth over 3 GHz is observed in both circulating directions for two different lasers. © 2012 SPIE.
키워드
Bidirectional laser; Direct modulation; Rectangular ring laser; Three waveguide coupler; Cavity length; Continuous wave operation; Coupled waveguides; Direct intensity modulation; Direct modulation; Laser cavity; Lasing characteristics; Lasing threshold; Low loss; Modulation bandwidth; Modulation properties; Output couplers; Room temperature; Total internal reflection mirror; Modulation; Refractive index; Semiconductor lasers; Ring lasers
- 제목
- Direct intensity modulation of three-guide coupled rectangular ring laser having bidirectional lasing characteristics
- 저자
- Kim, D.G.; Kim, S.H.; Ki, H.C.; Jang, W.-G.; Lee, D.-K.; Kim, H.J.; Kim, H.J.; Oh, G.-Y.; Choi, Y.W.; Dagli, N.
- 발행일
- 2012-01
- 유형
- Conference Paper
- 저널명
- Proceedings of SPIE - The International Society for Optical Engineering
- 권
- 8277
- 언어
- ENG
- 발행국가
- 미국
- ISSN
- P 0277-786X