Finisar’s S7500 tunable laser incorporates a monolithic InP chip that integrates a tunable MG-Y laser with a semiconductor optical amplifier (SOA). The MG-Y (Modulated Grating Y-branch) laser is an electronically tuned device that can address any wavelength in the C-band. Since no mechanical or thermal adjustments are necessary, channel switching is very fast. The SOA facilitates flexible control of the output power and acts as a shutter when reverse biased, enabling dark tuning between channels. The devices are packaged into a compact, low-profile hermetically sealed package, with an internal optical isolator and a wavelength locker. The locker monitors both output power and frequency of the light emitted from the chip, enabling a closed loop control that guarantees stability of the frequency and output power over life, to within the requirements of 50 GHz ITU grid spacing applications. The S7500 is provided with polarization maintaining fiber for use with an external modulator. The laser is RoHS compliant and lead free per Directive 2011/65/EU.
DWDM transmission systems
Tunable DWDM transponders and transceivers
Dynamic provisioning and wavelength routing in metro DWDM systems
Optical packet or burst-mode switching
Test and measurement
Full C-band tuning (89 channels at 50 GHz spacing)
High, flexibly adjustable output power, from 9 to 13 dBm
Low power dissipation, typically < 2.2 W at 75°C
High side-mode suppression ratio > 40 dB
Dark tuning by reverse biasing the integrated optical amplifier
Compact, low-profile, hermetic laser package with internal optical isolator
Integral wavelength locker, allowing stabilization to within ±2.5 GHz over life, compatible with 50 GHz ITU grid spacing
Polarization maintaining fiber pigtail
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Shenzhen Highlight Optical Technology Co., Ltd., located in Shenzhen, China's 'Maker City', is a high-tech enterprise specializing in the research, sales and technical services of products in the fields of fiber optic communication and fiber optic sensing. Since its establishment, the company has adhered to the business philosophy of independent innovation, quality first, and creating value for customers. Relying on its own R&D strength and extensive technical cooperation with domestic universities and research institutes, it has been dedicated to the R&D and production of devices for high-speed fiber optic communication and fiber optic sensing, and has developed a series of high-quality, high-speed and customized fiber optic products. At present, Highlight Optical's products are widely used in fiber optic communication, fiber optic sensing, LiDAR, microwave photonics and other fields. Its low-cost, high-quality products and technical solutions have been widely praised by customers.