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High-Speed InGaAs Photodetectors: Precision Solutions for Demanding Fiber Optic Systems

2025-04-24 4 min read Author: LK-Optoelectronic

In the fast-paced world of radar systems, electronic warfare, and high-speed fiber optic communications, signal integrity and reliability are non-negotiable. The LK Series High-Speed InGaAs Photodetectors stand at the forefront of optoelectronic innovation, offering unmatched performance for mission-critical applications. Designed for wavelengths from 1000 to 1650 nm and bandwidths up to 30 GHz, these detectors deliver precision, durability, and flexibility.

Why Choose LK Series Photodetectors?

1.Ultra-Wide Bandwidth & High Dynamic Range

Up to 30 GHz Bandwidth: Ideal for radar signal processing, 5G networks, and high-speed data transmission.

Low Noise Figure: Achieve ≤-130 dB/Hz RIN (Relative Intensity Noise) for crystal-clear signal detection.

2.Robust Design for Extreme Environments

Hermetic Sealing: Protects against moisture, dust, and contaminants, ensuring reliability in aerospace, military, and industrial settings.

Wide Temperature Range: Operate seamlessly from -55°C to +85°C, withstanding harsh thermal conditions.

3.High Responsivity & Customization

InGaAs PIN Photodiodes: Offer responsivity ≥0.9 A/W@1310nm and ≥0.85 A/W@1550nm, maximizing optical-to-electrical conversion efficiency.

Modular Configurations: Choose from SMA, SMP, or 2.92mm connectors, and bandwidths tailored to specific needs (e.g., 0.1–30 GHz).

4.Compact & Lightweight

Miniaturized Models: Weighing as little as 8 grams (LK-SSPD), these detectors are perfect for UAVs, portable systems, and space-constrained installations.

Key Applications

Defense & Aerospace: Radar calibration, electronic warfare (EW), and phased array antenna testing.

Telecommunications: High-speed data centers, DWDM/CWDM networks, and 5G infrastructure.

Industrial Sensing: Distributed acoustic sensing (DAS), LiDAR, and precision measurement systems.

Featured Products

LK-AMPD-D: 20 GHz bandwidth with 30 dB RF gain, ideal for Ku-band satellite communications.

LK-HSPD-Ku: 18 GHz bandwidth and 2.92mm connectors for high-frequency RF testing.

LK-MAMPD-4: Multichannel design supporting 4 simultaneous inputs, optimized for multi-antenna systems.

LK-SSPD: Ultra-compact 20 GHz detector for portable and airborne applications.

Technical Highlights

Frequency Range: DC to 40 GHz (select models).

Low Dark Current: ≤10 nA ensures high signal-to-noise ratio (SNR).

Customizable Options: FC/APC, SC/APC, or bare fiber inputs; RoHS 2.0 compliant.

Conclusion: Elevate Your Optical Systems

From military-grade resilience to telecom-grade precision, the LK Series Photodetectors redefine performance benchmarks. Whether you're developing next-gen radar systems or optimizing data center throughput, these detectors provide the speed, accuracy, and reliability needed to stay ahead.

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LK-Optoelectronic is a trailblazer and producer of state-of-the-art high-speed optical communication networks and cutting-edge defense systems within China.

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