Laser diode integrated with a low radiation loss thickness-tapered beam expander for highly efficient fiber coupling

被引：4

作者：

Takahashi, M

Aoki, M

Sato, H

Ohtoshi, T

Tsuji, S

机构：

[1] Central Research Laboratory, Hitachi Ltd., Kokubunji, Tokyo, 185, 1-280, Higashi-Koigakubo

来源：

OPTICAL REVIEW | 1996年 / 3卷 / 6B期

关键词：

beam expander; optical coupling efficiency; radiation loss; ridge waveguide structure; buried hetero structure; beam propagation method; shadow-masked growth; selective area growth;

D O I：

10.1007/BF02932054

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The optimal structure of a laser diode monolithically integrated with a thickness-tapered beam expander waveguide is demonstrated by analyzing the relationship between fiber coupling efficiencies and radiation losses. It is also found that mode conversion loss is lowered in a ridge waveguide structure than in a buried hetero structure under equivalent fiber coupling. A fabricated ridge waveguide device based on this design shows threshold current as low as 16 mA and narrow beam divergences of 13 degrees and 12 degrees.

引用

收藏

页码：484 / 486

页数：3

相关论文

共 12 条

[1] Wide-temperature-range operation of 1.3-mu m beam expander-integrated laser diodes grown by in-plane thickness control MOVPE using a silicon shadow mask [J].

Aoki, M ;

Komori, M ;

Suzuki, M ;

Sato, H ;

Takahashi, M ;

Ohtoshi, T ;

Uomi, K ;

Tsuji, S .

IEEE PHOTONICS TECHNOLOGY LETTERS, 1996, 8 (04) :479-481

[2] NOVEL STRUCTURE MQW ELECTROABSORPTION MODULATOR DFB-LASER INTEGRATED DEVICE FABRICATED BY SELECTIVE AREA MOCVD GROWTH [J].

AOKI, M ;

SANO, H ;

SUZUKI, M ;

TAKAHASHI, M ;

UOMI, K ;

TAKAI, A .

ELECTRONICS LETTERS, 1991, 27 (23) :2138-2140

[3] INP-BASED MULTIPLE-QUANTUM-WELL LASERS WITH AN INTEGRATED TAPERED BEAM EXPANDER WAVE-GUIDE [J].

BENMICHAEL, R ;

KOREN, U ;

MILLER, BI ;

YOUNG, MG ;

CHIEN, M ;

RAYBON, G .

IEEE PHOTONICS TECHNOLOGY LETTERS, 1994, 6 (12) :1412-1414

[4]

KOBAYASHI H, 1994, 5 OPT C OEC 94, P74

[5] INGAASP/INP TAPERED ACTIVE LAYER MULTIQUANTUM-WELL LASER WITH 1.8-DB COUPLING LOSS TO CLEAVED SINGLEMODE FIBER [J].

LEALMAN, IF ;

RIVERS, LJ ;

HARLOW, MJ ;

PERRIN, SD .

ELECTRONICS LETTERS, 1994, 30 (20) :1685-1687

[6] MONOLITHIC INTEGRATION OF A SPOT SIZE TRANSFORMER WITH A PLANAR BURIED HETEROSTRUCTURE IN GAASP/INP-LASER USING THE SHADOW MASKED GROWTH TECHNIQUE [J].

MOERMAN, I ;

DHONDT, M ;

VANDERBAUWHEDE, W ;

COUDENYS, G ;

HAES, J ;

DEDOBBELAERE, P ;

BAETS, R ;

VANDAELE, P ;

DEMEESTER, P .

IEEE PHOTONICS TECHNOLOGY LETTERS, 1994, 6 (08) :888-890

[7] 1.31 MU-M BEAM-EXPANDER INTEGRATED LASER GROWN BY SINGLE-STEP MOVPE [J].

SATO, H ;

AOKI, M ;

TAKAHASHI, M ;

KOMORI, M ;

UOMI, K ;

TSUJI, S .

ELECTRONICS LETTERS, 1995, 31 (15) :1241-1242

[8]

SODA H, 1995, CLEO PACIFIC RIM 95, P97

[9] SPOT-SIZE CONVERTED 1.3-MU-M LASER WITH BUTT-JOINTED SELECTIVELY GROWN VERTICALLY TAPERED WAVE-GUIDE [J].

TOHMORI, Y ;

SUZAKI, Y ;

FUKANO, H ;

OKAMOTO, M ;

SAKAI, Y ;

MITOMI, O ;

MATSUMOTO, S ;

YAMAMOTO, M ;

FUKUDA, M ;

WADA, M ;

ITAYA, Y ;

SUGIE, T .

ELECTRONICS LETTERS, 1995, 31 (13) :1069-1070

[10] LASER-DIODES MONOLITHICALLY INTEGRATED WITH SPOT-SIZE CONVERTERS FABRICATED ON 2INCH INP SUBSTRATES [J].

WADA, M ;

KOHTOKU, M ;

KAWANO, K ;

KONDO, S ;

TOHMORI, Y ;

KONDO, Y ;

KISHI, K ;

SAKAI, Y ;

KOTAKA, I ;

NOGUCHI, Y ;

ITAYA, Y .

ELECTRONICS LETTERS, 1995, 31 (15) :1252-1254