Abstract

We present a new approach to cavity enhanced-direct frequency comb spectroscopy where the full emission bandwidth of a titanium:sapphire laser is exploited, currently at gigahertz resolution. The technique is based on low-resolution Vernier filtering obtained with an appreciable actively stabilized mismatch between the cavity-free spectral range and the laser repetition rate, using a diffraction grating and a split-photodiode. Spectra covering 1300cm1 (40 THz) are acquired in less than 100 ms, and a baseline noise of 1.7×108cm1 is reached with a cavity finesse of only 300, providing an absorption figure of merit M=6×1011cm1·Hz1/2.

© 2014 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Near infrared frequency comb vernier spectrometer for broadband trace gas detection

Feng Zhu, James Bounds, Aysenur Bicer, James Strohaber, Alexandre A. Kolomenskii, Christoph Gohle, Mahmood Amani, and Hans A. Schuessler
Opt. Express 22(19) 23026-23033 (2014)

Adaptive cavity-enhanced dual-comb spectroscopy

Weipeng Zhang, Xinyi Chen, Xuejian Wu, Yan Li, and Haoyun Wei
Photon. Res. 7(8) 883-889 (2019)

Fourier transform and Vernier spectroscopy using an optical frequency comb at 3–5.4  μm

Amir Khodabakhsh, Venkata Ramaiah-Badarla, Lucile Rutkowski, Alexandra C. Johansson, Kevin F. Lee, Jie Jiang, Christian Mohr, Martin E. Fermann, and Aleksandra Foltynowicz
Opt. Lett. 41(11) 2541-2544 (2016)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription