LUNA’s motorized variable optical delay line provides precision optical path length adjustment of up to 560 ps, single-pass (1160ps, double-pass). Driven by a DC motor with an integrated encoder, the MDL-002 has a resolution of less than 0.3μm (1 fs). In addition, its advanced motion design guarantees longevity for long-term continuous operation. Low insertion loss and high reliability make this device ideal for integration in optical coherence tomography (OCT) systems, network equipment and test instruments for precision optical path length control or timing alignment.
The MDL-002 is available in three
configurations:
1) an integrated unit for use as a bench-top
instrument for laboratory applications,
2) with the optical head and control unit
separated for easy incorporation into other equipment
3) an OEM version with a miniature controller
board (figure 1)
All three versions can be remote controlled by
a PC or a micro-processor through an RS-232 interface. The delay line is available with
either single mode or PM fiber pigtails.
Figure 2 : insertion loss vs. optical delay
Figure 1 : MDL-002 Motorized Variable Optical Delay
Line – VariDelayTM, remote head and mini controller board configuration
Key Features
• Compact
• High resolution
• Low backlash
• Low insertion loss
• High stability
• Highest delay to length ratio
• Long delay: more than 560 ps (1120ps double-pass model).
Key Features
• Optical Coherence Tomography (OCT)
• Optical Fourier spectrum analysis
• Optical interferometry
• Delay generation and measurement
• Optical time division multiplexing (OTDM)
• Fiber sensors