501 In Stock

The 501 by Newport is a Laser Diode Driver, designed for seamless integration with laser diodes, functioning as a precision current source renowned for its exceptional stability and minimal noise output. Tailored to cater to diverse applications, this driver empowers users to select laser current ranges with utmost flexibility. Operating in either constant current mode or constant power mode, the 501 driver provides a versatile platform to suit various operational requirements. Remarkably, the unit offers the capability to bias a monitor in reverse or at zero voltage, up to 5 volts, eliminating the need for external power supplies.

The 501 driver employs a multi-stage soft-start sequence that includes relay shorting and redundant FET shorting circuits. This sequence guarantees optimal protection during startup, allowing the output current to gradually and safely ascend to the desired operating setpoint following a brief delay. Notably, the driver incorporates a current LIMIT setting that serves as a failsafe mechanism, effectively preventing the output current from surpassing the designated maximum operational limit. This feature remains functional regardless of the chosen mode of laser diode operation. This driver also accommodates external analog modulation input, enabling precise voltage-based control of the output. For those seeking an economical yet effective means of monitoring and remotely controlling the laser diode, the Analog Interface Card provides a viable solution. Further emphasizing its versatility, the 501 driver is engineered to seamlessly drive an array of laser diode, photodiode, or LED package configurations.