Whispering-gallery-mode-resonator-based ultranarrow linewidth external-cavity semiconductor laser.
نویسندگان
چکیده
We demonstrate a miniature self-injection locked distributed-feedback laser using resonant optical feedback from a high-Q crystalline whispering-gallery-mode resonator. The linewidth reduction factor is greater than 10,000, with resultant instantaneous linewidth of less than 200 Hz. The minimal value of the Allan deviation for the laser-frequency stability is 3 x 10(-12) at the integration time of 20 micros. The laser possesses excellent spectral purity and good long-term stability.
منابع مشابه
Extended ultrahigh-Q-cavity diode laser.
We report on a study of a 698 nm extended cavity semiconductor laser with intracavity narrowband optical feedback from a whispering gallery mode resonator. This laser comprises an ultrahigh-Q (>10(10)) resonator supporting stimulated Rayleigh scattering, a diffraction grating wavelength preselector, and a reflective semiconductor amplifier. Single longitudinal mode lasing is characterized with ...
متن کاملSub-kHz lasing of a CaF₂ whispering gallery mode resonator stabilized fiber ring laser.
We utilize a high quality calcium fluoride whispering-gallery-mode resonator to passively stabilize a simple erbium doped fiber ring laser with an emission frequency of 196THz (wavelength 1530nm) to an instantaneous linewidth below 650Hz. This corresponds to a relative stability of 3.3 × 10(-12) over 16μs. In order to characterize the linewidth we use two identical self-built lasers and a comme...
متن کاملCharacterization technique of optical whispering gallery mode resonators in the microwave frequency domain for optoelectronic oscillators.
Optical Q factor measurements are performed on a whispering gallery mode (WGM) disk resonator using a microwave frequency domain approach instead of using an optical domain approach. An absence of hysteretic behavior and a better linearity are obtained when performing linewidth measurements by using a microwave modulation for scanning the resonances instead of the piezoelectric-based frequency ...
متن کاملOptimizing the coupling of light via a prism to high-Q modes of a microsphere resonator using a near-field probe
In this work, we develop and demonstrate a new technique for optimizing the inputand outputcoupling of light confined in the fundamental whispering-gallery mode (WGM) of a dielectric microsphere using the frustrated total internal reflection at a prism to couple the radiation of a tunable narrow-linewidth diode laser emitting around 670 nm to the eigenmodes of the microcavity. The fundamental m...
متن کاملAll-polymer whispering gallery mode sensor for application in optofluidics
Microcavities such as spheres or rings are resonant optical sensors which support whispering gallery modes (WGMs). In recent years WGM based sensors have been continuously improved with respect to sensitivity and detection limit. The conventional method to measure physical as well as biological quantities using WGMs is to record the resonance shift of a single resonator. To ensure high sensitiv...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Optics letters
دوره 35 16 شماره
صفحات -
تاریخ انتشار 2010