Motorized Optical Fiber Delay Lines

The MDL Series Motorized Variable Optical Delay Lines provide precision optical path delays of up to 17 cm, which corresponds to 560 picoseconds maximum delay in the time domain.

Stand-alone and remote operation via RS-232
Instant scan interruption and current position display
Electronic backlash compensation
Delay position readout in picosecond and millimeter
Relative zero position setting
±3 µm (10 fsec) position accuracy and repeatability

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Description	Compatibility	Type	Fiber Type	Fiber Connector	Operating Wavelength	Price
MDL-1-6-FA-P Optical Delay Lines, Motorized Variable Variable Delay Line, Motorized, 1550 nm, 560 ps, PM Pigtails, FC/APC	UNIVERSAL	Variable Delay Line	Polarization Maintaining	FC/APC	1500-1600 nm	$10,290
MDL-1-6-FP-P Optical Delay Lines, Motorized Variable Variable Delay Line, Motorized, 1550 nm, 560 ps, PM Pigtails, FC/PC	UNIVERSAL	Variable Delay Line	Polarization Maintaining	FC/PC	1500-1600 nm	$10,400
MDL-2-3-FP-S Optical Delay Lines, Motorized Variable Variable Delay Line, Motorized, 1310/1550 nm, 330 ps, SMF-28, FC/PC	UNIVERSAL	Variable Delay Line	Singlemode	FC/PC	1260-1650 nm	$7,880
MDL-2-6-FA-S Optical Delay Lines, Motorized Variable Variable Delay Line, Motorized, 1310/1550 nm, 560 ps, SMF-28, FC/APC	UNIVERSAL	Variable Delay Line	Singlemode	FC/APC	1260-1650 nm	$9,450
MDL-2-6-FP-S Optical Delay Lines, Motorized Variable Variable Delay Line, Motorized, 1310/1550 nm, 560 ps, SMF-28, FC/PC	UNIVERSAL	Variable Delay Line	Singlemode	FC/PC	1260-1650 nm	$9,450

Features

Automated Delay Positioning

Driven by a DC motor with an integrated encoder, the motorized variable optical delay line offers a high delay resolution of 1 fs for both 330 and 560 picosecond models. The electronics are also programmed to compensate automatically for backlash in the motor.

Stand-alone and remote operation

With integrated front panel control the user has to option to control the device as a stand-alone product or utilize the RS-232 interface to develop a fully automated delay solution.

Compact, Rugged Design

These motorized optical delay lines employ a compact and rugged package design that makes the device ideal for network equipment and test instrument integration. The delay lines can also be used in laboratories for precision optical path length control or timing alignment.

Long Delay in Small Package

Utilizing a multi-pass system, we are able to efficiently design a product that can provide delays up to 560 ps.

FC Connectors Standard

Users can choose from FC/PC or FC/APC connectors to give extra flexibility and provide ease of integration into any system.

Applications

Optical coherence tomography (OCT)
Time division multiplexing (TDM)
Pulse alignment
Optical spectrum analysis
Interferometry
Vary modulation phase of reflections for the testing of reflection effects on transmitters