
Modulator Bias Controller
Exail's Modulator Bias Controllers (MBC) offer advanced solutions for optimizing modulator performance. These controllers stand out by providing precise bias voltage to select and stabilize the modulator's operating point, ensuring consistent and stable conditions over time and temperature variations. In contrast to manual adjustments, Exail's MBCs are automated bench-top instruments, eliminating the need for constant monitoring and readjustment. The MBCs enhance the efficiency of Mach-Zehnder interferometer modulators, making them ideal for various applications demanding high performance and operational stability.
Optimize optical modulation with Bias Controllers
Operating within a wavelength range of 760 nm to 2200 nm, Exail’s MBCs deliver versatile power calibration points, making them ideal for diverse applications. Whether in an R&D laboratory or manufacturing environment. Exail's MBCs provide fully-featured bias control for customized setups using external lasers, LiNbO3 intensity modulators, signal sources, and RF amplifiers. With multiple operation modes, our MBCs ensure flexibility, precision, and ease of use for modulator optimization.
Dither-less MZ modulator bias controllers for analog applications
In contrast to conventional dither signal-based bias controllers, the MBC-AN refrains from adding any tone signal to the optical modulated wave. Specifically crafted for applications that demand purity without a tone signal, these controllers are well-suited for analog applications requiring a high-purity carrier. Featuring seamless implementation, full automation through the autoset function, and housed in a compact, intelligent package, the MBC-AN ensures optimal performance.


Continuously tunable MZ modulator bias controllers for digital applications
The MBC-DG serves as an automatic bias controller meticulously crafted to lock the operating point of LiNbO3 Mach-Zehnder modulators, ensuring stability across various environmental conditions. This controller is a continuously tunable bias controller, enabling operation at any point along the intensity modulator's transfer function. This adaptability makes it suitable for a range of telecom modulation schemes, including NRZ, DPSK, RZ, and more.
Modulator bias controllers for enhanced control of I&Q modulators
The MBC-IQ represents an electronic system designed to govern I&Q Modulators in a CS-SSB modulation scheme. Utilizing a minimization approach for the beating harmonic of two small dithers, this system ensures exceptional harmonic rejection in the optical CS-SSB spectrum, consistently exceeding 40 dB for extended durations, even over tens of hours.


Continuously tunable MZ modulator bias controllers for pulse application with precision drift compensation
The MBC-DG is designed to compensate the drift and maintain with an exceptional accuracy the modulator bias point of MZ modulator and thus reach a very high optical pulse contrast value and stability.