Two-color detector


Two InGaAs PIN PD with different spectral response are arranged one above the other to cover a broad wavelength range


The K11908-010K incorporates an InGaAs PIN photodiode (cutoff wavelength: λc=1.7 μm) mounted over a long wavelength type InGaAs PIN photodiode (λc=2.55 μm), along the same optical axis. The spectral response covered from 0.9 μm to 2.55 μm as wide range and delivers low noise.

-InGaAs (λc=1.7 μm) mounted over InGaAs (λc=2.55 μm) along the same optical axis
-Wide spectral response range: 0.9 to 2.55 μm
-Low noise
-Low dark current


Package Metal
Package Category TO-5
Cooling Non-cooled
Spectral response range 0.9 to 1.7 μm
Detector (1) InGaAs
Photosensitive area (1) 2.4×2.4 mm
Peak sensitivity wavelength (typ.) (1) 1.55 μm
Photosensitivity (typ.) (1) 0.95 A/W
Cutoff frequency (typ.) (1) 2 MHz
Detector (2) InGaAs
Photosensitive area (2) φ1.0 mm
Peak sensitivity wavelength (typ.) (2) 2.1 μm
Photosensitivity (typ.) (2) 1 A/W
Cutoff frequency (typ.) (2) 6 MHz
Measurement condition Typ., Ta=25 ℃, unless otherwise noted

Spectral response

Dimensional outline (unit: mm)

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