Characterization of an external cavity diode laser based ring cavity NICE-OHMS system.
نویسندگان
چکیده
The performance of an external cavity diode laser based noise immune cavity enhanced optical heterodyne molecular spectrometer is presented. To reduce the noise on the signal a ring cavity and a circuit to remove residual amplitude modulation on the pre-cavity laser radiation was implemented. We demonstrate a sensitivity of 4 x 10(-11) cm(-1) Hz(-1/2) using a cavity with a finesse of 2600 on a Doppler-broadened transition of CH(4) at 6610.063 cm(-1).
منابع مشابه
External cavity diode laser-based detection of trace gases with NICE-OHMS using current modulation.
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ورودعنوان ژورنال:
- Optics express
دوره 17 12 شماره
صفحات -
تاریخ انتشار 2009