Test Boards (Fixtures) and Accessories STO-EXT40-2

Our proprietary technologies support a range of optical pulse generators, seed sources, and semiconductor laser drivers. The STO-LDa series includes pulsed products with picosecond-to-microsecond widths and peak power exceeding1W. Patent-pending ANYPULSE technology generates programmable optical-transmission time-domain waveforms. Control software allows user waveform programming with nanosecond resolution and11-bit amplitude resolution. High-speed, high-power linear laser drivers convert analog signals into optical transmission with peak laser current up to3A. High-speed, high-power digital drivers convert digital signals, with peak current up to0.5A, data rates up to1Gb/s, and PRBS data-pattern handling. Products integrate cooled or uncooled laser diodes and LEDs as required, spanning UV to IR, including1064 and1550nm. Evaluation boards and accessories are available for rapid module assessment. Products fall into four main groups: STO-LDa pulse generators, pulse-shaping (time-domain) products, laser drivers for3D ToF cameras, and test boards (fixtures) and accessories.

Pulse-Width Range in Gain-Switched Mode [Depends on Laser-Diode Type]: 40ps - 150ps Peak Power [Depends on Laser-Diode Type]: 200mW - ~1W Bias Current [Can Be Increased to 100mA on Request]: 0 - 50mA

The STO-LDa-gs seed-laser assembly integrates the seed-source (oscillator) section of pulsed MOPA fiber lasers, including a trigger generator, adjustable pulse-width generator, laser power supply, TEC controller, and laser diode. An onboard potentiometer adjusts optical peak power. Internal or external triggering is available; each rising-edge external trigger produces one pulse. External analog voltage controls optical width from gain-switched operation (~50ps) to above1ns. Analog inputs set bias current and temperature, and each can be replaced by an onboard potentiometer for internal settings. Bias-current control affects spectral width or extinction ratio. Wide-temperature, maintenance-free operation suits industrial laser OEM integration, with options available on request. Trigger Input |TTL/LVTTL, Rising Edge, High Impedance; Module Enable |TTL/LVTTL, Laser Enable and TEC Enable; Mounting |Vertical or Horizontal; Main Connector |Samtec TFM-120 Series,40 pin. Fixed pulse width:50ps-150ps. Compatible diodes for STO-LDa-gs include DFB, FP, or FBG at1030nm,1064nm,1310nm,1480nm,1550nm, or custom wavelengths, in14-pin or10-pin butterfly or coaxial packages. Product information:for200mA bias current, a heat sink is required, increasing module length to80mm; contact the company for detailed control-module information. Configuration table: Model |Power |Mounting |TEC Controller |Trigger Generator |Potentiometer |Bias Current0-200mA |Laser Diode. STO-LDa-gs |5/12V(12) or5/24V(24) |Horizontal(H)/Vertical(V) |Yes(T)/No(X) |Yes(G)/No(X) |Yes(P)/No(X) |Yes(B)/No(X) |Laser Diode Description. STO-LDa-gs product-code example:12V supply, horizontal mounting, TEC controller and trigger generator, no potentiometer,200mA bias current, and1064 DFB diode:STO-LDa-gs-12-H-T-G-X-B-1064DFB. STO-LDa-gs |12 V(12) |Horizontal(H) |Yes(T) |Yes(G) |No(X) |Yes(B) |1064 DFB Laser Diode.

Adjustable pulse delay [Pulse/Digital Delay Generator]: 10ps~>1000s Adjustable pulse width [Pulse/Digital Delay Generator]: 5ns~>1000s Delay resolution [Pulse/Digital Delay Generator]: 10 ps

The TOMBAK digital signal delay generator offers modes including standalone signal generation, digital delay generation, frequency division, burst generation, pulse picking, voltage-level conversion, and arbitrary waveform generation (AWG). It typically works with EOMs, AOMs, or SOAs for device testing, laser timing, pulse picking, camera synchronization with photodiode signals, and board-level OEM integration. GUI software controls all module functions and includes integration libraries such as LabVIEW VIs, dll, Hexa, and Python. Functions shown in the referenced illustrations: TOMBAK delays output relative to input with adjustable pulse width; TOMBAK generates burst-controlled output with adjustable delay and width; TOMBAK synchronizes output to a synchronization signal with adjustable pulse width and delay; TOMBAK divides input frequency with adjustable output width and delay; TOMBAK converts input amplitude thresholds into digital output as a voltage-level converter. Application example: laser repetition rates above40MHz complicate detection, requiring reduction from40MHz to5MHz. In the illustrated scheme, the onboard PD of TOMBAK converts optical signals to electrical signals; TOMBAK reduces their frequency, and the reduced-frequency electrical signal drives the RF driver to lower the laser repetition rate.

Pulse Range [STO-LDa-64; Accuracy 0.25ns]: 1ns-64ns Pulse Fine Adjustment: No Less than +/-1ns Peak Laser Current [Using 16V Supply]: Not less than 800mA

STO-LDa-yyy-HS seed modules integrate the seed/oscillator section of pulsed MOPA fiber lasers. All key functions are included: adjustable pulse generator, laser driver, TEC controller and integrated diode. Each rising-edge trigger produces one pulse; an additional 8-bit adjustment fine-tunes width. Four products cover 1ns to 256ns. Analog inputs control fine pulse width, bias current and temperature; each can be replaced by an onboard potentiometer for external or internal control. Designed for broad temperatures and maintenance-free use in commercial/industrial systems. Trigger: TTL/LVTTL, rising edge, high impedance; trigger width must exceed programmed pulse width. Enable: TTL/LVTTL laser/TEC enable. Vertical/horizontal mounting; flat or bracket diode heatsink. Compatible diodes: STO-LDa-yyy accepts DFB, FP, FBG, 1030nm,1064nm,1310nm,1480nm,1550nm or custom wavelengths, in industrial butterfly or coaxial packages. Product coding: | Maximum Pulse Width (ns) | Power Supply | Mounting | TEC Controller | Potentiometer | Laser Diode STO-LDa-yyy-HS | 64/128/256 | 5/5V(5), 5/12V(12)or 5/16V(16) | Horizontal (H) / Vertical(V) | Yes (T) / No (X) | Yes(P)/No (X) | Notes STO-LDa-128Module Product Code Example: 12V Power Supply ，HorizontalMounting，with TECController、noPotentiometer,1064 DFBLaser DiodeSTO-LDa-128-HS-12-H-T-X-1064FBG STO-LDa | 128-HS | 12 V | Horizontal | Yes | No | 1064 FBG Laser Diode