Fiber-coupled Comb-laser diode in 14-pin BTF package
Comb-laser diode on submount
Comb-laser diode on submount
Comb-Lasers
The comb laser functions as a multi-channel DWDM laser source, generating a precise array of equidistant spectral lines, known as a frequency comb. Innolume’s quantum-dot (QD) comb laser, operating within the O-band, is optimized for multi-channel data transmission by exploiting the region’s minimal chromatic dispersion to support high-speed optical communication with reduced signal degradation. The device employs a saturable absorber section for enhanced phase-locking of the modes, distinguishing it from conventional mode-locked lasers by enabling pulse-free operation. The QD comb laser demonstrates exceptional optical performance, evidenced by low relative intensity noise (RIN) below -130 dB/Hz (averaged in the range of 0-10 GHz) for individual spectral components and a narrow beating spectrum linewidth, ensuring consistent channel spacing.
This high-precision, stable platform is also ideal for advanced interferometric applications. Configurations include chip-on-carrier formats and fiber-coupled packages featuring integrated optical isolators for enhanced system integration.
For optimized performance and thermal stability, Innolume comb lasers can be paired with a dedicated driver and TEC controller for comb laser-diode
Key features of Comb-lasers
- Multi-wavelength O-band laser emission
- Precisely equidistant channel spacing
- Frequency-modulated mode-locking
- Ultra-low RIN (< -130 dB/Hz) per channel
Typical parameters of Comb-Lasers
Comb Laser for precision and stability
Comb lasers, with their ability to generate multiple coherent wavelengths spaced by a fixed frequency, offer unique advantages like:
- high precision;
- wavelength stability;
- multi-channel output.
Comb lasers are transforming fields like telecommunications, imaging, quantum technologies, sensing, and space exploration, offering unparalleled precision and scalability across industries.
Telecommunications and Data Centers. Comb lasers play a crucial role in telecommunications, especially in data centers and optical networks. By facilitating dense wavelength division multiplexing (DWDM), they greatly enhance bandwidth while minimizing hardware needs and reducing costs. These lasers optimize the performance of passive optical networks (PONs) and offer a compact, energy-efficient option for high-speed data transfer. In particular, O-band comb lasers, with their low dispersion in standard single-mode fibers, are well-suited for fast data transmission.
Biomedical Imaging and OCT. In biomedical imaging, comb lasers play a key role in Optical Coherence Tomography (OCT). For applications like retinal imaging and intravascular diagnostics, their multi-wavelength output supports swept-source OCT, enhancing imaging speed and resolution. The O-band’s low dispersion in biological tissues further improves depth resolution.
Quantum Technologies. Comb lasers support quantum key distribution (QKD) and quantum networks due to their coherence and stability. Their multi-channel capabilities enable simultaneous quantum communication over multiple channels, advancing secure communication and quantum experiments.
Sensing and Lidar. In lidar systems, comb lasers improve resolution and detection through advanced multiplexing. They enhance optical sensors like fiber Bragg grating (FBG) sensors, widely used in structural health monitoring for industries like aerospace and energy. The O-band’s low dispersion can improve accuracy in specific sensing applications.
Space and Astrophysics. In astrophysics, comb lasers provide precise wavelength references for spectrometer calibration and exoplanet detection. They are also vital for space-based optical communication and metrology applications like optical clocks and interferometers, where their precision and stability are critical.
Innolume is your trusted partner for comb-laser solutions
Innolume is a global leader in advanced photonics technology, specializing in high-performance comb lasers tailored to meet the demands of cutting-edge industries. Our comb lasers are engineered for exceptional wavelength precision and stability, ensuring reliable performance, from telecommunications to quantum technologies. We work closely with clients to develop custom solutions that meet specific technical and operational requirements.
Choose Innolume for state-of-the-art comb lasers that drive efficiency, precision, and innovation in your applications. Discover how our technology can transform your systems and take your performance to the next level.