We realized a prototype series of the 1550-nm band wavelength-tunable laser module. The edge-emitting Fabry-Perot diode laser operates in the short external cavity configuration and is tuned by a silicon surface micromachined Fabry-Peacuterot interferometer device. Titoptic Ltd is a private limited liability company established in 2020 in the city of Sofia, Bulgaria. Titoptic Ltd exports 100% of its products to companies in. Micro Optics Europe has more than 20 years of experience in mass and prototype production of optical components, assemblies, and microsystems for medical, dental and space industries. The company was part of OPTIX JSC, a Bulgarian company, specialized in the design and manufacturing of optical. COB LED modules have emerged as a transformative technology in commercial and architectural lighting, offering distinct advantages over traditional discrete LED arrays in applications demanding high lumen density, superior thermal performance, and precise optical control. Unlike fixed-wavelength lasers, which are optimized for a single spectral line, tunable lasers employ mechanisms — such as temperature. precedented stability and resolution. The compact and reliable TFN is available in two models: reflection R) and transmission-reflection (T+R). The narrowband option enables bandwidths from 2 GHz to 100 GHz, and the ultra-narrowband option enab se and accurate narrowband filtering.