Enhancement of dynamic range in 1.55-μm VCSELs using injection locking

Injection locking is demonstrated to improve the analog performance of long wavelength vertical-cavity surface-emitting lasers. The third-harmonic dynamic range was improved by /spl sim/20 dB/spl middot/Hz/sup 2/3/ to be /spl sim/94 dB/spl middot/Hz/sup 2/3/, and the modulation bandwidth was increased two fold. The locking conditions are studied and show that the improvement is present over a wide range of injection power and wavelength detuning.

[1]  L. Curtis,et al.  Multiple-reflection-induced intensity noise studies in a lightwave system for multichannel AM-VSB television signal distribution , 1990, IEEE Photonics Technology Letters.

[2]  Marc Sorel,et al.  Dynamic behavior and locking of a semiconductor laser subjected to external injection , 1998 .

[3]  R. F. Nabiev,et al.  Electrically-pumped directly-modulated tunable VCSEL for metro DWDM applications , 2001 .

[4]  K.D. Choquette,et al.  Dynamic range of vertical-cavity surface-emitting lasers in multimode links , 1999, IEEE Photonics Technology Letters.

[5]  Lukas Chrostowski,et al.  Injection-locked 1.55 [micro sign]m VCSELs with enhanced spur-free dynamic range , 2002 .

[6]  C.J. Chang-Hasnain,et al.  Tunable VCSEL , 2000, IEEE Journal of Selected Topics in Quantum Electronics.

[7]  C.J. Chang-Hasnain,et al.  Electrically-pumped directly-modulated tunable VCSEL for metro DWDM applications , 2001, 2001 Digest of LEOS Summer Topical Meetings: Advanced Semiconductor Lasers and Applications/Ultraviolet and Blue Lasers and Their Applications/Ultralong Haul DWDM Transmission and Networking/WDM Compo.

[8]  L. Chrostowski,et al.  Transmission improvement of VCSEL at 2.5Gb/s under injection locking by another VCSEL , 2001, LEOS 2001. 14th Annual Meeting of the IEEE Lasers and Electro-Optics Society (Cat. No.01CH37242).

[9]  Robert Olshansky,et al.  Subcarrier multiplexed lightwave systems for broad-band distribution , 1989 .

[10]  H.F. Chen,et al.  Modulation bandwidth, noise, and stability of a semiconductor laser subject to strong injection locking , 1997, IEEE Photonics Technology Letters.

[11]  Kent D. Choquette,et al.  Low distortion analogue signal transmission using vertical cavity lasers , 1998 .

[12]  Rajeev J. Ram,et al.  Linearity and third-order intermodulation distortion in DFB semiconductor lasers , 1999 .

[13]  K. Takiguchi,et al.  Harmonic distortion in 1.55-μm vertical-cavity lasers , 2000, IEEE Photonics Technology Letters.

[14]  Stephen A. Pappert,et al.  Microwave fiber optic links for shipboard antenna applications , 2000, Proceedings 2000 IEEE International Conference on Phased Array Systems and Technology (Cat. No.00TH8510).

[15]  J. Le Bihan,et al.  Reduction of nonlinear distortion in directly modulated semiconductor lasers by coherent light injection , 1997 .

[16]  Ming C. Wu,et al.  Improved intrinsic dynamic distortions in directly modulated semiconductor lasers by optical injection locking , 1999 .