Introduction to ROF Optical Delay Line

Introduction to ROF Optical Delay Line
The ROF series of optical delay line can achieve continuous and precise adjustment and control of optical phase, and are widely used in fields such as optical interference, microwave communication, and spectral analysis. According to the driving method, it is divided into two categories: the Motorized optical delay line MODL series (stepper motor drive, supporting remote computer control) and the manual optical delay line ODL series (knob drive, no external power supply required), covering the full range phase control requirements from 330ps to 2000ps.
Motorized optical delay line MODL sub series
Powered by an electric stepper motor and compatible with RS485/RS422/RS232 remote control, suitable for automated testing and precision control systems:
MODL-300: Low volume basic model, maximum delay 333ps
MODL-600: Medium Range Standard, Maximum Delay 666ps
MODL-1000: High precision version with a large range, maximum delay of 1000ps
MODL-1200: Ultra large range version with a maximum delay of 1200ps
MODL-2000: Extra large travel model with a maximum delay of 2000ps
2 Manual Optical Delay Line ODL Subseries
Adopting manual knob direct drive, no external power supply or control equipment required, simple and portable operation, suitable for laboratory rapid debugging and simple measurement scenarios:
ODL-300: Small range manual version, maximum delay 330ps
ODL-600: Medium range manual version, maximum delay 660ps
3 General Main Features
Small size, compact structure
High precision phase delay control
Large adjustment range, supporting continuous phase adjustment
Low insertion loss and insertion loss variation
Stable and reliable work
Support customization according to user needs
4 series unique features:
Motorized series: supports remote computer control, can achieve automated scanning and precise positioning
Manual series: No need for external power supply, ready to install and use, easy to operate
5 General Application Fields
Fiber optic interferometer
Coherent communication system
spectral analysis
Radar testing and calibration
Fiber optic network testing system


Post time: Jun-25-2026