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We realized an all polarization maintaining (PM), Q-switched erbium-doped fiber laser based on WSe2-PVA saturable absorber (SA). At the pump power of 280 mW, the laser had a pulse width of 1.013 μs, a repetition rate near 110 kHz and a center wavelength of 1560 nm. Q-switched mode-locked operation was also observed when the pump power reached 420 mW. An all polarization maintaining hybrid mode-locked...
We report 50Gb/s On-Off keying (OOK) and 40Gb/s binary phase shift keying (BPSK) modulation in a single-drive push-pull silicon Mach-Zehnder modulator with optimized segmented electrode design. The measured modulation efficiency (Vπ·Lπ) is ȼ1.77 V·cm at 4.0 V reverse bias and the electro-optic (EO) 3-dB bandwidth exceeds 30 GHz at 6.0 V reverse bias.
A 34.3 fs pulse generation dechirped from a nonlinear polarization evolution (NPE)-based modelocked Er-doped fibre laser at a repetition rate of 201 MHz is reported. The output power is 38.5 mW at a pump power of 700 mW.
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