Diode Laser Optically Injected by Resonance of a Monolithic Cavity

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2011,（11）
• 页码范围: 128-130
• 页数: 3页
• 语种: 英文
• DOI: 10.1088/0256-307X/28/11/114208

摘要

We demonstrate a self-injection locking extended cavity diode laser (ECDL) using resonant optical feedback from the p-polarization of a monolithic folded Fabry Perot parallel cavity (MFC).The full width at half maximum of the MFC resonance is 31AMHz.With the help of a narrow-linewidth reference laser,the linewidth of the ECDL is measured to be about 7 kHz.The frequency of the laser could be tuned at 160 MHz with an amplitude of 40 V by a PZT mounted on the monolithic cavity and the voltage tuning coefficient is about 4 MHz/V.Diode lasers exhibit broadband frequeney noise that can present a severe obstacle for locking their frequencies to atomic hyperfine transitions,molecular rotational atndl vibrational transitions,and typically have linewidths around KHz.FoR these purposes,selfinjection locking[ 1-5] is used since its fast optical feedback enables a significant reduction of laser linewidth and can be very tightly paekaged due to not requiring any electronics.In Refs.[1-5],the linewidth of extended cavity diode lasers (ECDL) was reduced by optical feedback with a resonant cavity.