Abstract

Orientation-patterned GaAs (OP-GaAs) has grown in importance over the last decade as a quasi-phasematched (QPM) nonlinear optical (NLO) material for frequency conversion applications in the mid-infrared. OP-GaAs is attractive due to its high nonlinearity (d14 = 94 pm/V), high thermal conductivity (46 W/mK), low absorption loss, and wide transparency range (~0.9-18 μm). Since the first reports of pulsed (ns) SHG and OPO operation in OP-GaAs [1,2], ns OPOs have improved in output power and efficiency and device demonstrations have expanded to broader spectral ranges (including THz generation) and temporal regimes (fs and ps). Continuous wave (cw) frequency conversion in OP-GaAs has been limited to DFG, and more recently SHG demonstrations at relatively low power and efficiency [3,4]. Despite attempts by several groups, cw OPO operation in OP-GaAs has not been previously achieved. OP-GaAs must be pumped at λ > 1.73 μm to avoid two-photon absorption and free-carrier absorption, but to date cw OPO has yet to be demonstrated in any NLO material pumped beyond 1.55 μm since the OPO threshold scales as the cube of the pump wavelength.

© 2013 IEEE

PDF Article
More Like This
Mid-IR continuum from an optical parametric generator based on orientation-patterned GaAs (OP-GaAs)

P. S. Kuo, K. L. Vodopyanov, M. M. Fejer, X. Yu, J. S. Harris, D. M. Simanovskii, D. Bliss, and D. Weyburne
CWE1 Conference on Lasers and Electro-Optics (CLEO) 2005

20-50 kHz Mid-Infrared OP-GaAs OPO

Christelle Kieleck, Marc Eichhorn, Antoine Hirth, David Faye, and Eric Lallier
CTuII1 Conference on Lasers and Electro-Optics (CLEO) 2008

Quarter Watt 2-octave Wide Mid-IR Frequency Comb from a Subharmonic OPO Based on OP-GaP Crystal

Qitian Ru, Taiki Kawamori, Peter G. Schunemann, Sergey Vasilyev, Sergey B. Mirov, and Konstantin L. Vodopyanov
SF3R.3 CLEO: Science and Innovations (CLEO_SI) 2020

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