Microresonator stabilized 2 μm distributed-feedback GaSb-based diode laser | Zendy

Elijah Dale | Zendy; Mahmood Bagheri | Zendy; Andrey B. Matsko | Zendy; Clifford Frez | Zendy; Wei Liang | Zendy; Siamak Forouhar | Zendy; Lute Maleki | Zendy

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Microresonator stabilized 2 μm distributed-feedback GaSb-based diode laser

Author(s) -

Elijah Dale,

Mahmood Bagheri,

Andrey B. Matsko,

Clifford Frez,

Wei Liang,

Siamak Forouhar,

Lute Maleki

Publication year - 2016

Publication title -

optics letters

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.41.005559

Subject(s) - laser linewidth , distributed feedback laser , laser , optics , materials science , semiconductor laser theory , fiber laser , optoelectronics , diode , laser diode , whispering gallery wave , laser power scaling , wavelength , tunable laser , injection seeder , physics

We report on the stabilization of a high-power distributed feedback (DFB) semiconductor laser operating at 2.05 μm wavelength, using a crystalline whispering gallery mode microresonator. The laser's frequency noise is measured to be below 100 Hz/Hz 1/2 at Fourier frequencies ranging from 10 Hz to 1 MHz. The instantaneous linewidth of the laser is improved by four orders of magnitude compared with the free-running DFB laser, and is measured to be 15 Hz at 0.1 ms measurement time. The integral linewidth approaches 100 Hz. The stabilized DFB laser is integrated with a polarization maintaining output fiber and an integrated optical isolator.

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