OFM-12-DP 12-Channel Optical Delay Phase Modulator

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Digital Laser Components

Precisely matching optical path lengths and phase, with loading up to 12 independent channels

OFM-12-DP 12-channel optical delay phase modulator is designed to precisely match optical path lengths and modulate the phase of multiple laser channels. It effectively solves the problem of phase matching and reduced coherence length in high-power, narrow-linewidth lasers caused by spectral broadening. The OFM-12-DP optical delay phase modulator integrates 12 independent channels, each with its own optical delay line and electro-optic phase modulator, allowing for a wide range of delay adjustments and high-precision phase control.

Parameters

Optical Characteristics
Laser wavelength (nm)	1064±2
Insertion loss (dB)	≤6
Polarization extinction ratio (dB)	>18 (fast axis cut-off)
Max. input power (mW)	300
Delay accuracy (ps)	0.05
Delay range (ps)	0-330

Optical Interfaces
Input fiber type	PM980
Input fiber interface	FC/APC
Input fiber length (m)	1
Output fiber type	PM980
Output fiber interface	FC/APC
Output fiber length (m)	1

Electrical Characteristics
Phase modulation half-wave voltage Vp (V)	≤2.5 @ 50kHz
Phase modulation bandwidth (MHz)	≥200
Return loss (dB)	≤-10
Impedance (Ω)	50

Environmental Adaptability
Operating conditions	-40 to 85°C, < 90%RH, can be reinforced for special environments
Storage conditions	-40 to 85°C, < 90%RH, can be reinforced for special environments

Features

Dual-Mode Modulation Technology
Delay modulation: Supports picosecond (ps) to nanosecond (ns) laser pulse delay adjustments with sub-picosecond resolution, ideal for applications requiring strict timing synchronization (e.g., quantum entanglement experiments).
Phase modulation: Offers a modulation rate of 100MHz and highly linear phase control, enabling dynamic beam wavefront shaping or light field coherence optimization.
Array Integration Design
Integrates 12 independent modulation channels, supporting synchronous or asynchronous control of multiple lasers to reduce system size and complexity.
Utilizes a Lithium Niobate (LiNbO₃) material process to ensure low insertion loss (<3 dB) and high stability.
Smart Control Interface
Supports dual-mode operation via electronic control or software programming, compatible with external control modules like FPGAs and DSPs for real-time dynamic adjustments.
Provides an API for seamless integration into automated optical experimental platforms or industrial equipment.

Applications

Coherent synthesis
For matching optical path differences and phase control in laser array optical paths.
Laser phased arrays
For dynamic beam shaping and atmospheric turbulence compensation of laser arrays.
Lidar
Enables timing synchronization and beamforming for multi-beam scanning.
Fiber sensing
Enhances distributed acoustic/temperature sensing performance through phase detection technology.

Advantages

High precision
Features all-temperature-range (-40°C to 85°C) phase drift compensation technology, ensuring long-term stability.
Scalability
Supports cascading of modules to expand to 24 or 48-channel arrays, adapting to the needs of large-scale laser array coherent control.

With its multi-channel, high-precision, and strong compatibility, the OFM-12-DP optical delay phase modulator is a core component for both cutting-edge optical research and industrial-grade laser systems.

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