Pound Drever Hall laser stabilization scheme

06 Sep 2011

Sacher Lasertechnik offers a complete Pound Drever Hall laser stabilization scheme. It consists of FPGA operated double DDS high frequency Modulator/Demodulator unit as well as FPGA operated proportional integral (PI) high-speed servo controller for external cavity diode laser systems and DFB diode lasers. Model LB2001 & LB2005 together provide an easy, intuitive and highly stable Top of Line lock via laser via piezo- and laser current feedback path.

Supported Diode Laser Systems

• Littrow Cavity
• Littman / Metcalf Cavity
• Laser Systems from Various Manufacturers

Modulation Frequency

• Two DDS Synthesizers
• up to 100MHz

Special Features

• Adjustable Phase Delay
• 0 - 360 degree

Servo Bandwidth

• Adjustable up to 10MHz

Regulation Feedback Path

• Laser Diode Injection Current
• Piezo Voltage

Advanced System Design

• Low Noise Analog Servo Controller Board
• D/A Converters with Sleep Mode
• FPGA Controlled Interface Board

Special Features

• Low Frequency Gain Limit
• Integration Hold Mode
• Auto-Relock Feature

Flexibility

• Stand Alone Units (No Expensive External Chassis)
• Cooperates with Laser Controllers from Various Manufacturers

Remote Control

• USB Interface
• Software Package (Under Preparation)

Types of Application

• Diode Laser Control
• Top of Line Lock
• Side of Fringe Lock
• Linewidth Narrowing
• Pound Drever Hall Lock
• Bjorklund Lock
• Sidelock of Lasers

Fields of Application

• Optical Cooling and Trapping
• Bose-Einstein Condensation
• Quantum Optics
• Frequency Metrology

Remote Control

• USB Interface (Under Preparation)
• Software Package (Under Preparation)

Types of Application (in Combination with LB2001 Servo Controller)

• Diode Laser Control
• Top of Line Lock
• Linewidth Narrowing
• Pound Drever Hall Lock
• Bjorklund Lock
• Sidelock of Lasers

Fields of Application

• Optical Cooling and Trapping
• Bose-Einstein Condensation
• Quantum Optics
• Frequency Metrology