Low Polarization-Dependent Loss InGaAs Photodiodes

Polarization-Sensitive Applications

Low-PDL InGaAs photodiodes are engineered for stable optical detection with minimal sensitivity to variations in light polarization.

By reducing polarization-dependent loss, they maintain consistent responsivity across changing polarization states, enhancing measurement accuracy in systems where polarization control is limited.

Built on InGaAs technology, these photodiodes operate across near-infrared wavelengths widely used in fiber-optic, sensing, and instrumentation applications. Their low polarization dependence minimizes signal fluctuations in fiber-coupled systems, interferometric setups, and other precision optical measurements.

Low Polarization-Dependent Loss InGaAs Photodiodes
Low PDL Datasheet

These devices are commonly used in optical communications, laser power monitoring, spectroscopy, and test-and-measurement environments. A range of packaging and configuration options enables straightforward integration into systems requiring stable, polarization-independent performance.

Features

  • Area independent (0.3 to 10 mm diameter)
  • High sensitivity
  • Cutoff wavelength at 1.7 μm (lattice matched)
  • Low polarization-dependent response
  • Active device receptacles (FC, SC, ST, SMA)

Applications

  • Back-facet laser diode monitor
  • Optical power meters
  • Polarization characterization of optical fibers, fiber couplers, and connectors
  • LD/LED test and measurement