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LongWave Photonics

LongWave Photonics is a high‑tech company specializing in the research, development, and manufacturing of terahertz (THz) quantum cascade lasers (QCLs), headquartered in Mountain View, California, USA.

Core Business and Positioning

LongWave Photonics is dedicated to providing advanced terahertz light source solutions for scientific research and industrial applications. Its core technology is based on quantum cascade lasers (QCLs) – semiconductor devices capable of generating high‑power laser radiation in the terahertz frequency range (1.9 to 5 THz). The company primarily serves fields that require high‑precision terahertz radiation sources, such as imaging, spectroscopy, and heterodyne receiver systems.

Main Product Series

The company offers various types of THz QCL systems and related components, including:

DFB Single‑Frequency THz QCLs: Distributed feedback lasers providing single‑frequency output for high‑resolution spectroscopic analysis.
Fabry‑Pérot THz QCLs: Multimode lasers suitable for broadband coverage applications.
Frequency‑Tunable THz QCLs: Allowing users to adjust the output frequency within a certain range for added application flexibility.
Cryogenic Housings: Supporting cryogenic environment equipment specifically designed for QCL operation.

Technical Features and Advantages

LongWave Photonics' products offer significant competitive advantages in the industry:

High Power Output: Providing milliwatt‑level average power in the 1.9–5 THz frequency range, a high‑performance benchmark for terahertz sources.
Maintenance‑Free and Ease of Use:
Cryogen‑free operation: Systems adopt a compact design that eliminates the need for consumable refrigerants such as liquid helium, reducing operating costs and complexity.
No optical alignment required: As turnkey systems, users can operate them right out of the box without complex optical adjustments.
Compact and Portable: The system design is small and suitable for integration into various laboratory or field inspection equipment.

Application Fields

Its THz laser systems are widely used in the following cutting‑edge areas:

Terahertz Imaging: Used for non‑destructive testing, security screening, and biological tissue imaging.
Spectroscopy: Applied to gas detection, material characterization, and chemical fingerprinting.
Heterodyne Receivers: Used for astronomical observations, remote sensing, and high‑sensitivity signal reception.

LongWave Photonics website：www.longwavephotonics.com

Shanghai Laser Opto Co.,Ltd supplies LongWave Photonics products. For more details, please contact us! info@laser-opto.com

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