1535nm100uJ pulse laser structure design scheme

J100N01 is a bonded crystal developed by the company. It is composed of white Glass, erbium Glass (Er:Yb: Glass), and cobalt Spinel (Co: Spinel) materials in three stages from front to back (the luminous end is the rear end). It adopts advanced non-adhesive bonding technology and has the characteristics of low loss, high energy efficiency, high stability, and easy integration.  

The design scheme is as follows:

1535nm100uJ pulse laser structure design scheme

Among them, device 1 is COS, with a central wavelength of 940nm and a peak working power of 5-8W.  Device 2 is a fast axis compression lens (FAC), which can collimate the fast axis divergence Angle of the light emitted from the pump source.  Device 3 is a shaping lens. Different shaping lenses can be used according to different parameter requirements.  Device 4 is 100uJ bonded crystal, model J100N01.  

J100N01 is a bonded crystal developed by the company. It is composed of white Glass, erbium Glass (Er:Yb:Glass) and cobalt Spinel (Co:Spinel) materials in three stages from front to back (the luminous end is the rear end). It adopts advanced non-adhesive bonding technology and has the characteristics of low loss, high energy efficiency, high stability and easy integration.  

J100N01 is coated on both sides, and the white glass side is S1 side.  The other side, that is, the luminous end face is S2.  HR@1535nm & AR@940nm coating is used for S1, and PR@1535nm coating is used for S2.  The S1 and S2 surfaces can form a perfect laser resonator, thus saving the trouble of building laser resonator by users.  In addition, passive Q-switched crystal (cobalt spinel) is integrated in the cavity. By optimizing the parameter design, 100uJ single pulse energy output can be achieved with relatively high efficiency. 

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