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Frontiers of Optoelectronics

Front. Optoelectron.    2017, Vol. 10 Issue (1) : 14-17     DOI: 10.1007/s12200-016-0536-0
Multi-operation laser oscillator: an example of multi-operation laser
Zongxin ZHANG,Xiaoming LU,Yuxin LENG()
State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
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A multi-operation laser oscillator is developed and built with multiple operation modes (OMs): injection-seeding mode, cavity-dumping mode and Q-switching mode. With the same electrical energy pumping, the multi-operation laser oscillator provides different output energies and pulse durations for different OMs. In the Q-switching mode, the output coupling is optimized for different electrical energy pumping. The laser oscillator operation can be switched between different modes conveniently. The multi-operation laser sources could be operated in multiple OMs for various research and application requirements.

Keywords multi-operation laser      injection-seeding      cavity dumping      Q-switching     
Corresponding Authors: Yuxin LENG   
Just Accepted Date: 19 July 2016   Online First Date: 06 September 2016    Issue Date: 17 March 2017
 Cite this article:   
Zongxin ZHANG,Xiaoming LU,Yuxin LENG. Multi-operation laser oscillator: an example of multi-operation laser[J]. Front. Optoelectron., 2017, 10(1): 14-17.
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Zongxin ZHANG
Xiaoming LU
Yuxin LENG
Fig.1  Schematic of multi-operation laser oscillator. TFP1, TFP2, TFP3, thin-film polarizers; PC1, PC2, Pockels cells; QWP1, QWP2, quarter-wave plates; HWP, half-wave plate; M1, M2, mirrors. The inset shows the front view of QWP2, q = 0° for OM1/OM2
Fig.2  Temporal operations of PC1/PC2 in OMs. The time period t4t5 has different optimum values for different OMs
Fig.3  Output pulse energy versus LD driving current for OM1/OM2. The slope of linear fitting curve for OM2 is higher than that for OM1
Fig.4  Output pulse energy versus the angle q for OM3. Angle q has different optimum values with different driving current levels of 60, 65 and 70 A
t0t4 t4t5 t5t0
OM1 pump phase amplification phase cavity dump phase
OM2 pump phase laser oscillation phase cavity dump phase
OM3 pump phase laser oscillation phase
Tab.1  Operation cycles for the OMs
Fig.5  Optimum values of q and output energy versus the parameter z for OM3. qopt = 8.7° and Eout = 5.0 mJ for 60 A driving current, 9.9° and 8.1 mJ for 65 A, 10.9° and 11.7 mJ for 70 A, respectively
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