DigiLock 110: デジタルロックモジュール

デジタルレーザーロッキングモジュール

  • FPGAベースのレーザーロッキング：簡単＆フレキシブル
  • フルデジタル，コンピュータ制御
  • 高速レスポンス, 高帯域幅
  • マルチPID, ロックイン, Pound-Drever-Hall, FFT
  • クリック & ロック, リロック, ネットワーク解析, シミュレーション機能

 

トプティカ社の DigiLock 110 はレーザー制御, 安定化, 特性評価・解析のための汎用性の高いソリューションです。そのデジタル機器は、使いやすく柔軟かつインテリジェントな機能になっております。 FPGAベースのハードウェアは高帯域幅と柔軟性のある動作を可能にし、ソフトウェアは簡単に全ての概要を確認操作可能で、必要であれば全ての細部の調整ができます。

Application Note - Phase and Frequency Locking of Diode Lasers

The DigiLock 110 features multiple digital controllers. PID parameters, bandwidths, etc. can be digitally entered. The user can easily go back to well proven parameter sets and change parameters in well defined steps. With the parameters given, the DigiLock can calculate the controller frequency response in amplitude and phase and visualize it – a useful tool in optimizing locking performance, especially in conjunction with spectrum and network analysis.
The DigiLock 110 AutoLock feature controls multiple PIDs and the analog P simultaneously. It scans the laser to the desired lock point, and enables all PIDs at the right moment. The DigiLock can detect a correct lock through several means, allow a lock only under certain circumstances and try to relock in a well defined and controlled way once it does fall out of lock. This intelligence makes locking lasers a lot more comfortable and maximizes measurement time for the user.
The DigiLock 110 module supports the user in many ways. When optimizing laser locking parameters, it is useful to see, how the spectrum of the error signal looks like. The DigiLock can not only display time signals, but it can also display the spectrum of a signal. Oscillations can be easily detected and residual laser noise analyzed. Also, the frequency response of the actuators in the laser play an important role when choosing corner, modulation and filter frequencies. DigiLock offers network analysis functions for determining actuator bandwidth and resonance frequencies.