Supports various laser locking methods. A frequency stabilization module that consolidates all functions into one unit.
The construction of a laser frequency stabilization system requires multiple functions such as RF signal sources, demodulation circuits, and filters. The PLM is an error signal generation module that integrates a variable RF signal source, a low-noise variable gain circuit, a phase-sensitive demodulation circuit, and a low-pass filter into a compact housing. It supports frequency locking using the PDH (Pound-Drever-Hall) method, modulation transfer spectroscopy (MTS), and FM demodulation methods, assisting in the construction of laser frequency stabilization systems. It features an error signal output that can be connected to an external laser servo controller and supports intuitive operation via USB control and a GUI.
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basic information
- RF frequency range: 500kHz to 100MHz (10kHz step) - Maximum RF output: +21dBm (at 50Ω termination) - Phase adjustment range: 0 to 360° (0.1° step) - Error signal gain: -10 to +20dB - Input bandwidth: 100kHz to 100MHz - PD input noise: less than 2pA/sqrt(Hz) - Error signal output: maximum +10dBm (at 50Ω load) - Low-pass filter: 200kHz / 3MHz / 10MHz / no filter (100MHz AAF) - Interface: USB-C, SMA - Power supply: 12V DC, 8W - Dimensions / weight: 150×75×36.5mm, 722g - Operating temperature: 10 to 35℃ 【Related Products】 - Digital Laser Diode Controller dDLC | Laser Control Equipped with advanced lock control functions based on FPGA. By combining with PLM, you can build a laser frequency control system utilizing FM demodulation. https://inst.santec.com/jp/products/quantum-instruments/electronics/ddlc
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Applications/Examples of results
- PDH frequency stabilization of optical resonators - Frequency locking to Rb/Cs/Sr, etc., using MTS - Frequency locking via saturated absorption spectroscopy - Research and development of laser frequency stabilization systems - Integration into spectral evaluation systems - Construction of control systems using external laser servo controllers PLM connects the laser system and servo control system as an error signal generation unit, making it usable for laser frequency stabilization applications.
Detailed information
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<Consolidation of Error Signal Generation into One Unit> PLM is an error signal generation module for laser frequency stabilization systems. It integrates an RF signal source, photodiode input circuit, mixer circuit, phase adjustment function, and low-pass filter internally. It phase-sensitively demodulates the signal input from the optical detector and outputs it as an error signal necessary for frequency control. Filters can be selected from 200 kHz, 3 MHz, 10 MHz, or no filter. It supports frequency locking methods such as PDH, MTS, and FM demodulation. It features an error signal output that is easy to connect to external laser servo controllers, allowing for efficient configuration of laser frequency stabilization systems.
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Company information
Santec has been manufacturing optical components, laser products, and optical measuring instruments for over 40 years, responding to the stringent quality demands of our customers in the optical industry. Additionally, by constantly seeking innovation and meeting customer requests, Santec has introduced numerous new optical-related products to the market. Our journey towards the creation of the ideal world of light, "OPTOPIA," which is our management philosophy, also involves minimizing the timeline from product concept to commercialization.