Tunable VCSEL with ultra-thin high contrast grating for high-speed tuning | Zendy

Ye Zhou | Zendy; Michael Huang | Zendy; Connie J. Chang-Hasnain | Zendy

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Tunable VCSEL with ultra-thin high contrast grating for high-speed tuning

Author(s) -

Ye Zhou,

Michael Huang,

Connie J. Chang-Hasnain

Publication year - 2008

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.16.014221

Subject(s) - materials science , optics , vertical cavity surface emitting laser , grating , optoelectronics , wavelength , laser , continuous wave , tunable laser , diffraction grating , physics

We report a nano-electromechanical optoelectronic (NEMO) tunable vertical-cavity surface-emitting laser (VCSEL) with an ultra-thin (145 nm) electrostatically actuated high-index-contrast subwavelength grating (HCG) designed to strongly reflect TE-polarized light. Single mode emission (SMSR >45 dB) and continuous wavelength tuning (approximately 4 nm) were obtained at room temperature with output power up to 2 mW under continuous wave (CW) operation. A record short wavelength tuning time (approximately 90 ns) is experimentally demonstrated, which is >100 times faster than previously reported DBR-based tunable VCSELs and a 1.7 times improvement over the previously reported TM polarized NEMO tunable VCSELs.

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