粉体行业在线展览
面议
700
特点:
动态平差底座-准直轻松、快捷!
通过重叠主从激光器两光束得到光学拍音信号
光功率输入范围极大
直通式光束输入
光学拍音信号通过光纤传输到探测模块
多模光纤,准直简单;单模光纤,信号* da化
拍音监视出口为自由空间,便于准直
D2-250外差模块经过重新设计用于实现主从激光器两光束的重叠从而得到光学拍音信号。新式的动态平差底座使得主从激光器两光束的准直更加轻松快捷。输入接口的可旋转玻片及偏振光束分束器的使用,使得当接收到是大范围功率范围时可以轻松获取外差所需要的小部分功率。该模块光学拍音信号经拍音探测器探测后转换为电学拍音信号,并发送给D2-135偏移锁相伺服器用于主从激光器之间的锁定。
D2-135偏移锁相伺服器将拍音信号同内部参考信号或者客户提供的外部参考信号进行对比,将从激光器以预设的偏移量紧密锁定到主激光器。D2-250易于准直,只需要两个激光器分别提供总功率中的很小一部分即可正常运作。
D2-250 Heterodyne Module Specifications | |
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All specifications subject to change without notice. 1The maximum power incident upon the detector in the D2-160 Beat Note Detector from the sum total of the master and slave lasers must not exceed 1 mW. Damage to the detector can occur at average powers exceeding 1 mW. 2An FC/APC to SC/PC MM fiber is provided with the D2-160 Beat Note Detector. | |
Parameter | Value |
In-coupling | Free-space |
Wavelength range | 700-1,000 nm |
Power range | 0.1 mW to 200 mW in each laser |
Pick-off percentage | 1-98% (variable) |
Throughput | >98% in each laser; depending on waveplate orientation |
Input polarization | Linear (horizontal or vertical) |
Minimum power in beat note1 | >50 μW, optimally 200 μW |
Max power at detector1 | <1 mw="" --1--=""> |
Fiber connector on module | FC/APC2 |
Compatible fiber type2 | Multimode or single mode |