LN Phase Modulator, ASE Light Source Module for Fiber Optic Gyroscope
March 26, 2025 | POINTekEstimated reading time: 2 minutes
POINTek, Inc., a global leader and provider of high performance athermal AWG products, announced launching of a new family of aerospace application products: Lithium Niobate Phase Modulator and ASE Light Source Module for Fiber Optic Gyroscope (FOG).
LN Phase Modulator and ASE Light Source Module are the most important optical parts for FOG Inertial Navigation System. FOG is an effective optics to measure the angular velocity using the Sagnac effect. The fiber laser light generated from an ASE light source module and launched into a 1x2 LN phase modulator whose splitting arms are connected to each end of a close-looped Polarization Maintaining (PM) fiber coil. The two split lights from each arm of a phase modulator travel the same PM fiber coil in the opposite directions with the different polarizations. In this traveling path, two lights with the different polarization experience the path delay which results in the phase shift. Thus, the magnitude of the phase shift determines the accurate angular velocity.
POINTek recently started shipping phase modulators and ASE light source modules to Hanwha Aerospace in South Korea, a global leader in the advanced Aerospace System solutions.
"We are very pleased to formally set up a new aerospace business sector based on the multi-year large volume supply contract with Hanwha Aerospace. The long-standing good collaboration with Hanwha Aerospace over a decade has led us to organize and streamline our FOG products into a new business line within POINTek," according to Dr. Donald Yu, CMO of POINTek, operating from Los Angeles, California. Yu explains that POINTk's LN phase modulators and ASE light source modules have satisfied the customer's high quality and on-time delivery guidelines. "Fiber optic gyroscopes are used in the navigation, guidance, position stabilization and motion sensor system especially in the aerospace industry. Therefore, the optical parts require the high level of quality performance. We are proud of meeting the customer's requirements and finally it led us to the successful launch in POINTek's new aerospace business unit," Yu adds.
"Our LN phase modulators provide the high-quality Polarization Extinction Ratio (PER) performance. Because of our long-standing technical experiences in the high performance athermal AWG and other Telcom product development, we have adopted our sufficient packaging knowhows into the high PER performance. The low level of the PER is an important advantage for the more accurate FOG. Also, our ASE light sources, designed to support the three axes, perform very well, providing a balanced injected light power level among the 3 axes. Therefore, combination of our LN phase modulator and ASE light source module can all together provide the highly accurate FOG unit," says Dr. T.H. Rhee, CEO of POINTek. "In addition, we are proud of introducing other Aerospace products which could monitor structural stress/strain in the Aerospace Vehicles at the harsh environmental condition. Our products are designed to monitor change of mechanical stress/strain from multiple of hundreds of measurement points at once, so that it is a very efficient and effective way to prevent the possible fatal accident in advance," Rhee adds.
POINTek's specialty in high performance optical components offers a timely and appropriate solution to various optical components used in advanced FOG/INS applications and aerospace industries. These LN phase modulator and ASE light source module along with other new Data Center, Aerospace, and AI/Silicon photonics products will be shown in POINTek booth 2759 at the forthcoming OFC2025 Exposition in Moscone Convention Center, San Francisco in April1~3, 2025.
Testimonial
"We’re proud to call I-Connect007 a trusted partner. Their innovative approach and industry insight made our podcast collaboration a success by connecting us with the right audience and delivering real results."
Julia McCaffrey - NCAB GroupSuggested Items
Kodiak Assembly Solutions Renews ITAR Registration, Providing Secure and Compliant Manufacturing for Defense & Aerospace
09/25/2025 | Kodiak Assembly SolutionsKodiak Assembly Solutions LLLP, a leading electronics contract manufacturer, has successfully renewed its ITAR (International Traffic in Arms Regulations) registration.
Cyient DLM, A Voice from the Frontlines
09/24/2025 | Arpita Das, Global Electronics AssociationOnce seen as a low-cost, build-to-print destination, India’s EMS sector is rapidly emerging as a global hub for high-reliability electronics, particularly in strategic sectors like aerospace, defense, and medical. As such, we highlight some companies that exemplify the strength and potential of Indian manufacturing.
Nortech Systems Achieves Enhanced Fiber Optic Performance
09/16/2025 | Nortech SystemsNortech Systems Incorporated, a leading provider of design and manufacturing solutions for complex electromedical devices and electromechanical systems, announced significant advancements in its fiber optic capabilities.
Altair, Wichita State University’s NIAR Sign MoU to Accelerate Aerospace Innovation
09/16/2025 | AltairAltair, a global leader in computational intelligence, and Wichita State University’s (WSU) National Institute for Aviation Research (NIAR), one of the world’s leading aerospace research institutions, have signed a memorandum of understanding (MoU) to advance innovation across the aerospace and defense industries.
India’s Aerospace and Defence Engineered for Power, Driven by Electronics
09/16/2025 | Gaurab Majumdar, Global Electronics AssociationWith a defence budget of $82.05 billion (2025–26) and a massive $223 billion earmarked for aerospace and defence spending over the next decade, India is rapidly positioning itself as a major player in the global defence and aerospace market.