Close-up of a rotating LiDAR sensor head, its glass aperture reflecting a faint cyan glint, on a city street at dusk.
905 nm pulsed emitterbehind the aperture of the scanning head

Application

LiDAR & 3D Sensing

905 nm pulsed emitters, VCSEL arrays and APDs — the transmit and receive path inside time-of-flight modules.

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A rugged handheld laser rangefinder resting on a mossy rock at dusk, its multi-coated objective lens catching a faint teal glint.
905 nm pulsed emitterbehind the objective lens

Application

Laser Rangefinders & Hunting Optics

The highest-volume 905 nm socket in the world — plastic and metal TO56 emitters, pin-compatible with the OSRAM SPLPL90 family.

See the rangefinder emitters →
A pair of industrial through-beam photoelectric sensors facing each other across an automated conveyor line.
905 nm emitter diodetransmitter aperture of the through-beam pair

Application

Industrial Photoelectric Sensors

Standard 905 nm parts for distance sensors, light curtains and safety scanners — long qualification, ten-year repeat business.

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Close-up of a terrestrial laser scanner head on its tripod, standing on open hillside at blue hour.
905 nm emitter stackbehind the blue scan window

Application

Surveying, Mapping & Airborne LiDAR

Multi-stripe emitters up to 600 W and low-drift parts for terrestrial scanners and airborne mapping payloads.

See the high-power emitters →
A weatherproof traffic sensor housing on a roadside pole at night, its optical window catching a cyan reflection.
905 nm emitter and APDbehind the weatherproof lens

Application

Traffic Enforcement & Perimeter Security

Emitters and receivers for laser speed guns, traffic scanners and perimeter intrusion detection.

See the emitters and APDs →
An airborne electro-optical gimbal turret under the fuselage of an unmarked survey aircraft at dusk.
1535 nm eye-safe sourceinside the EO turret

Application

Defense & Aerospace EO

Eye-safe 1550 nm and 1535 nm erbium-glass sources plus high-gain APDs for designation and EO payloads.

See the eye-safe sources →
A portable TDLAS gas analyser aimed at a stainless steel pipe flange at an industrial plant at night.
DFB source and detectorin the analyser optical path

Application

Gas Detection & TDLAS

DFB sources from 760 nm to 1742 nm with matched photodetectors — the complete optical core of a TDLAS instrument.

See the DFB sources →
A fibre-coupled laser light engine on a laboratory bench, its output glowing with cyan excitation light.
Fibre-coupled light engineat the glowing FC/APC output

Application

Medical, Bio & Analytical Instrumentation

Turnkey fibre-coupled light engines with TEM00 output and M² ≤ 1.2 — flow cytometry, confocal microscopy, Raman.

See the light engines →
Illustrative imagery

Home / Products / APD Avalanche Photodiodes

APD Avalanche Photodiodes

TO46 / LCC · 905 nm, 650 nm and 1550 nm

The receive half of the link. High-gain, low-noise avalanche photodiodes with 230 µm or 500 µm active areas, in TO46 and surface-mount LCC packages — including a high-ambient-light version for outdoor rangefinding. Quoted with every emitter we ship, because the receive path is where the margin is.

  • 230 µm and 500 µm active area options
  • Responsivity up to 55 A/W at 905 nm (M = 100)
  • Rise time 0.6 ns — suited to sub-nanosecond ToF
  • Dark current down to 0.05 nA
  • Optional integrated shield; LCC variant for reflow assembly

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APD Avalanche Photodiodes product photo

Fibre-coupled APD — electro-optical characteristics (T = 25 °C)

Fibre-coupled APD — electro-optical characteristics (T = 25 °C)
ParameterSymbolConditionMinTypMaxUnit
Spectral response rangeλ——400 – 1100—nm
Active area diameterΦ——230 / 500—µm
ResponsivityReλ = 905 nm, Φe = 1 µW, M = 1005055—A/W
Rise timetrf = 1 MHz, RL = 50 Ω, λ = 905 nm—0.6—ns
Dark currentIdM = 1000.050.21.0nA
Total capacitanceCtotM = 100, f = 1 MHz—1—pF
Optimum gainM——100——
Breakdown voltageVBRIR = 10 µA170—210V
Operating voltage temp. coefficientδTc = −40 °C to 85 °C1.251.41.55V/°C

Configurations

Expand a group to see the model table. All powers are peak pulse power at 25 °C unless the table states otherwise.

TO46 — 905 nm and broadband

Hermetically sealed TO46 with a flat window and optional shielding can.

TO46 — 905 nm and broadband
ModelPackageActive area (microns)Spectral rangeBias voltageShieldNotes
TO46-905APD-230-1TO46230905 nm100 – 200 VNoNarrowband 905 nm coating
TO46-905APD-500-1TO46500905 nm100 – 200 VNoLarger area for wider field of view
TO46-APD-230-2TO46230400 – 1100 nm100 – 200 VNoBroadband
TO46-APD-500-2TO46500400 – 1100 nm100 – 200 VNoBroadband
TO46-905APD-230-1 (shielded)TO46230905 nm100 – 200 VYesIntegrated shield for EMI-heavy boards
LCC — surface mount

Ceramic LCC carrier for automated reflow assembly. Optimised for high-volume module production.

LCC — surface mount
ModelPackageActive area (microns)Spectral rangeBias voltageShieldNotes
LCC-905APD-230-1LCC230905 nm100 – 200 VOptionalReflow-compatible
LCC-905APD-500-1LCC500905 nm100 – 200 VOptionalReflow-compatible
LCC-APD-230-2LCC230400 – 1100 nm100 – 200 VOptionalBroadband
LCC-APD-500-2LCC500400 – 1100 nm100 – 200 VOptionalBroadband
LCC2-905APD-500-0.5LCC500905 nm100 – 200 VYesStrong-ambient-light (direct-sunlight) chip; breakdown 130 – 165 V; temperature coefficient 1.1. Also referenced as APD500-905-1-LCC2.
Fibre-coupled, and other wavelengths

Pigtailed APDs for fibre-based sensing and 1550 nm InGaAs parts for eye-safe receive paths.

Fibre-coupled, and other wavelengths
ModelPackageActive area (microns)WavelengthConnectorNotes
TO46/FC-APD-230-2TO-can + pigtail230400 – 1100 nmFC/APC or FC/PCSingle-mode or multimode pigtail
TO46/FC-APD-500-2TO-can + pigtail500400 – 1100 nmFC/APC or FC/PCSingle-mode or multimode pigtail
LCC-APD-1550-200LCC2001550 nm InGaAs—Receive path for 1550 nm eye-safe systems
650nm APD 1206LCC 1206 SMD—650 nm—Visible-light ranging and detection

Product views

APDs are shipped with a per-unit breakdown-voltage record so your bias circuit can be set without a sweep. Matched emitter + APD + driver bundles are quoted as a single line item.

Send us the specification you need to hit.

Wavelength, peak power, package and annual volume is usually enough for us to quote — and to say whether a sample is available from stock.

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