论文信息 - Lateral-mode discrimination in ridge waveguides by misaligned total internal reflection mirrors

Lateral-mode discrimination in ridge waveguides by misaligned total internal reflection mirrors

Lateral-mode discrimination by misaligned total internal reflection (TIR) mirrors in multimode ridge waveguide structures is proposed. The effects of angular misalignment in TIR mirrors and index steps in ridge waveguides on the modal reflectivity is analyzed by a plane wave expansion method. The modal reflectivity of a high order mode decreases more rapidly than that of a fundamental mode as the angular misalignment of TIR mirrors increases. It is found that a fundamental mode can have high modal reflectivity (/spl sim/0.9) with significant lateral-mode discrimination over high-order modes if the ridge waveguides have large index steps.<<ETX>>

J. Coleman | H. Han | H. Han | J.J. Coleman

[1] S. Oku,et al. Low-threshold CW operation of square-shaped semiconductor ring lasers (orbiter lasers) , 1991, IEEE Photonics Technology Letters.

[2] P. McIsaac,et al. Reflection and transmission of a dielectric waveguide mirror , 1992 .

[3] Rajaram Bhat,et al. Miniature integrated optical beam-splitter in AlGaAs/GaAs ridge waveguides , 1987 .

[4] N. Dagli,et al. A Low Loss Beam Splitter With An Optimized Waveguide Structure , 1992, Summer Topical Meeting Digest on Broadband Analog and Digital Optoelectronics, Optical Multiple Access Networks, Integrated Optoelectronics, Smart Pixels.

[5] T. Ikegami,et al. Reflectivity of mode at facet and oscillation mode in double-heterostructure injection lasers , 1972 .

[6] Reflectivity of coated and tilted semiconductor facets , 1991 .

[7] P. Einziger,et al. Plane-wave spectrum approach for tilted waveguides. , 1988, Optics letters.

[8] Joseph M. Ballantyne,et al. AlGaAs/GaAs‐based triangular‐shaped ring ridge lasers , 1992 .

[9] C. Chang-Hasnain,et al. Lateral and longitudinal mode discrimination in index-guided circular ring semiconductor lasers , 1993, IEEE Photonics Technology Letters.

[10] J. Coleman,et al. Low threshold InGaAs-AlGaAs-GaAs strained-layer quantum well heterostructure square ring lasers , 1993, Proceedings of LEOS '93.