Polarization-insensitive ultralow-power second-harmonic generation frequency-resolved optical gating

Authors

Houxun Miao, Andrew M. Weiner, Carsten Langrock, Rostislav V. Roussev, and Martin M. Fejer

Abstract

We demonstrate polarization-insensitive ultralow-power second-harmonic generation frequency-resolved optical gating (FROG) measurements with a fiber-pigtailed, aperiodically poled lithium niobate waveguide. By scrambling the polarization much faster than the measurement integration time, we eliminate the impairment that frequency-independent random polarization fluctuations induce in FROG measurements. As a result we are able to retrieve intensity and phase profiles of few hundred femtosecond optical pulses with 50 MHz repetition rates at 5.2 nW coupled average power without control of the input polarization.

Journal

Optics Letters

Volume

32

Number

7

Date

04/2007
AttachmentSize
Miao OL2007b392.37 KB