Chinese Optics Letters, Volume. 17, Issue 7, 071404(2019)
Strain compensated robust semiconductor saturable absorber mirror for fiber lasers
Fig. 1. Designed structure of the SESAM.
Fig. 2. Experimental setup for characterization of the SESAM. Test laser, 1064 nm mode-locked fiber laser with a pulse energy of 5 μJ;
Fig. 3. Nonlinear reflectivity measurements for the SESAM under test. The reflectivity is fitted with Eq. (
Fig. 4. Experimental setup of the mode-locked laser based on SESAM. Integrated SESAM including a 1064 nm collimator, a lens with a 15 mm focal length, and a SESAM mounted on a copper heat sink; Yb:fiber, Yb-doped fiber with an absorption coefficient of 5 dB/m at 975 nm; WDM, wavelength division multiplexer; FBG, fiber grating with a center wavelength of 1064 nm; diode laser, with a center wavelength at 975 nm.
Fig. 5. Image of the integrated SESAM.
Fig. 6. Pulse sequences from the SESAM mode-locked laser.
Fig. 7. (a) Measured pulse spectrum of the pulse train from the laser oscillator. (b) Intensity autocorrelation trace of the pulse train. (c) Measurement of output power as a function of pump power.
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Yan Wang, Nan Lin, Wanli Gao, Huanyu Song, Minglie Hu, Haiming Li, Wenxia Bao, Xiaoyu Ma, Zhigang Zhang. Strain compensated robust semiconductor saturable absorber mirror for fiber lasers[J]. Chinese Optics Letters, 2019, 17(7): 071404
Category: Letters
Received: Mar. 6, 2019
Accepted: Mar. 28, 2019
Posted: Mar. 29, 2019
Published Online: Jul. 9, 2019
The Author Email: Zhigang Zhang (zhgzhang@pku.edu.cn)