External cavity diode laser with kilohertz linewidth by a monolithic folded Fabry–Perot cavity optical feedback

2010 ◽  
Vol 36 (1) ◽  
pp. 34 ◽  
Author(s):  
Yang Zhao ◽  
Yu Peng ◽  
Tao Yang ◽  
Ye Li ◽  
Qiang Wang ◽  
...  
Keyword(s):  
Diode Laser ◽  
Optical Feedback ◽  
External Cavity ◽  
External Cavity Diode Laser ◽  
Fabry Perot

A Micromachined Silicon Flexure for Tunable External Cavity Diode Laser

2007 ◽  
Author(s):  
Ho-Chiao Chuang ◽  
Ricardo Jime´nez-Marti´nez ◽  
Simon Braun ◽  
Dana Z. Anderson ◽  
Victor M. Bright
Keyword(s):  
Diode Laser ◽  
Optical Feedback ◽  
Laser System ◽  
External Cavity ◽  
Threshold Current ◽  
Laser Frequency ◽  
External Cavity Diode Laser ◽  
Laser Design ◽  
Current Reduction ◽  
Reflection Grating

We present a novel external cavity diode laser design developed for atomic physics which employs a micromachined silicon flexure to sweep the laser frequency and a volume holographic reflection grating (VHG) to provide the optical feedback. The advantages of using a silicon flexure are its simple microfabrication process and reduction of the overall size of the laser system. The results demonstrate an optimized threshold current reduction from 59mA to 43mA, a frequency sweeping range of 2.069 GHz, and 87Rb, 85Rb (Rubidium) D2 line absorption at 780 nm.

Compact double optical feedback external-cavity diode laser system and its frequency stabilization

2007 ◽  
Author(s):  
Kohei Doi ◽  
Yuta Minabe ◽  
Takashi Sato ◽  
Takeo Maruyama ◽  
Masashi Ohkawa ◽  
...  
Keyword(s):  
Diode Laser ◽  
Optical Feedback ◽  
Laser System ◽  
External Cavity ◽  
Frequency Stabilization ◽  
External Cavity Diode Laser

Theoretical investigation of a tunable external cavity diode laser based on a single cavity all-dielectric thin-film Fabry–Perot filter

2016 ◽  
Vol 27 (01) ◽  
pp. 1650005 ◽  
Author(s):  
Zhao Heng ◽  
Xiao Xiao ◽  
Li Bo ◽  
Wang Wen Jin ◽  
Hu Yi ◽  
...  
Keyword(s):  
Thin Film ◽  
Plane Wave ◽  
Diode Laser ◽  
Incident Angle ◽  
External Cavity ◽  
Wavelength Region ◽  
External Cavity Diode Laser ◽  
Dielectric Thin Film ◽  
Fabry Perot ◽  
Single Cavity

The single cavity all-dielectric thin film Fabry–Perot filter (s-AFPF) has been theoretically investigated in this paper as a means of tuning the wavelength in an external cavity diode laser (ECDL), and the means of limiting longitudinal mode hopping has been also theoretically investigated. When a TE or TM plane wave irradiates an s-AFPF, a quasi-linear relationship is found in a certain wavelength range between the optical intensity peak transmittance wavelength of s-AFPF and the cosine value of plane wave incident angle at s-AFPF. Based on this feature, we proposed and theoretically investigated an ECDL configuration based on an s-AFPF. By theoretical calculation, the actuator flat edge against the steel ball may be replaced by a bent edge to convert the mode-hop wavelength region into mode-hop-free wavelength region. The ECDL can be used in the application of environmental monitoring, atomic and molecular laser spectroscopy research, precise measurements, and so on.

The Effects of Temperature, Injection Current and Optical Feedback on the Frequency Stabilization of External Cavity Diode Laser

2014 ◽  
Vol 979 ◽  
pp. 459-462
Author(s):  
N. Srisuai ◽  
N. Chattrapiban ◽  
W. Rakreungdet
Keyword(s):  
Diode Laser ◽  
Laser Cooling ◽  
Optical Feedback ◽  
External Cavity ◽  
Single Mode ◽  
Laser Frequency ◽  
Injection Current ◽  
External Cavity Diode Laser ◽  
High Resolution Spectroscopy ◽  
Single Mode Laser

A frequency-stabilized diode laser is widely used for applications in laser cooling and high-resolution spectroscopy. In this work, the 780-nm external cavity diode laser was constructed and subsequently frequency-controlled by three parameters, i.e., temperature, injection current and optical feedback. The laser frequency was measured with respect to the 5S1/2 → 5P3/2 (D2-lines) transition of Rubidium, while the laser mode was characterized by a Fabry-Perot interferometer. The laser temperature was passively controlled to a single value between 20 ̊C and 25 ̊C while the injection current was investigated in combination with course and fine adjustments of optical feedback. Only data relevant to a single-mode laser operation was collected. It was found that as the current increased, the laser frequency shifted linearly with slopes approximately 0.5-0.8 GHz/mA. Optical feedback from the external cavity was tuned by the voltage applied to the piezoelectric transducer, yielding a linear frequency response of approximately 0.2 GHz/V. The measured parameters were rearranged to represent the island of stability of the laser, suggesting suitable conditions that yielded single-mode operation, at a desirable laser frequency. The results were important for a design of an active feedback, in order to further reduce the frequency linewidth and intensity noise of the laser.

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