Technical innovation and high reliability are critical for our customers in the telecommunications industry. With II-VI Marlow’s origin as a supplier to the U.S. defense and space industries, quality and reliability were built into the corporate foundation from the outset. When II-VI Marlow considered logical places to expand its business, telecommunications was a clear choice due to the stringent quality and reliability concerns.
Today, II-VI Marlow is in partnership with multiple tier-one optical component suppliers. We understand the pressures to innovate ahead of the curve, anticipate market demand, scale production for volume orders and deliver tested/reliable solutions priced to fit the market.
II-VI Marlow delivers the highest quality telecommunications solutions at an off-shore price point. With a broad portfolio of product offerings and customization options, II-VI Marlow provides an optimum solution to extend application lifetime and performance.
Read more on our Telecommunications applications:
The telecommunications market often uses thermoelectric coolers (TECs) to temperature-stabilize semiconductor laser diodes. Laser diodes, called transmission lasers, transmit digital information over fiber optic cables. In Dense Wavelength Division Multiplexed (DWDM) systems, different wavelengths occupy the same fiber optic cable and must not be allowed to drift on top of each other due to changes in temperature. Thermoelectric coolers can either heat or cool the transmission lasers and hence can stabilize their temperature to prevent wavelength drift. Since transmission lasers work nonstop in the field for a minimum of 20 years, the TEC must match the laser’s lifetime and durability both in design and build.
The telecommunications market often uses thermoelectric coolers (TECs) to temperature-stabilize Photonic Integrated Circuits (PIC). PICs provide multiple functions built on a common Si or InP platform. PICs will commonly provide functions such as multiplexing several digital light streams, followed by laser transmission of the multiplexed signals, light stream detection and de-multiplexing of incoming signals, optical channel monitoring, wavelength add/drop switching and more. As with all Telcordia components, PICs are expected to work nonstop in the field for a minimum of 20 years; the TEC must accommodate the laser’s lifetime and durability both in design and build
The telecommunications market often uses thermoelectric coolers (TECs) to temperature stabilize Avalanche Photodiodes (APD). APDs are always reverse biased at a high voltage and therefore subject to excessive noise created by thermal energy. TECs can cool the APD and significantly reduce thermal noise, thereby increasing the APDs signal-to-noise ratio and its ability to differentiate very weak incoming light pulses. As with all Telcordia components, APDs are expected to work nonstop in the field for a minimum of 20 years; the TEC must accommodate the laser’s lifetime and durability both in design and build.