Abstract

We explore the spectral properties of a capillary dye laser in the highly multimode regime. Our experiments indicate that the spectral behavior of the laser does not conform to a simple Fabry–Perot (FP) analysis; rather, it is strongly dictated by a Vernier resonant mechanism involving multiple modes, which propagate with different group velocities. The laser operates over a very broad spectral range and the Vernier effect gives rise to a free spectral range, which is orders of magnitude larger than that expected from a simple FP mechanism. The theoretical calculations presented confirm the experimental results. Propagating modes of the capillary fiber are calculated using the finite-element method and it is shown that the optical path lengths resulting from simultaneous beatings of these modes are in close agreement with the optical path lengths directly extracted from the Fourier transform of the experimentally measured laser emission spectra.

© 2017 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Surface nanoscale axial photonics at a capillary fiber

T. Hamidfar, A. Dmitriev, B. Mangan, P. Bianucci, and M. Sumetsky
Opt. Lett. 42(16) 3060-3063 (2017)

Thermo-optic tuning of whispering gallery mode lasing from a dye-doped hollow polymer optical fiber

V. R. Anand, S. Mathew, Boni Samuel, P. Radhakrishnan, and M. Kailasnath
Opt. Lett. 42(15) 2926-2929 (2017)

Chirped fiber tip Fabry–Perot interferometer

Xinpu Zhang, Liyang Shao, Xihua Zou, Bin Luo, Wei Pan, and Lianshan Yan
Opt. Lett. 42(17) 3474-3477 (2017)

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 (5)

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 (8)

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