L15856-01
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Catalog excerpts

L15856-01 - 1

Fiber Output Laser Diode Bar Module L15856-01 ■ Features ● Radiant power: 240 W ● Fiber core diameter: 400 µm ● Capable of outputting laser diodes (LD) temperature and humidity in the package ● Equipped with a leakage sensor ● Built-in photodiode (PD) for radiant power monitor ■ Applications ● Exciting a solid state laser ● Selective laser heating ■ Outline This is a fiber output LD bar module using 940 nm LD bars. It can output the information of temperature of its built-in LD, humidity in the package, leakage and radiant power through D-sub connector. Also, it uses a water cooling method that does not require pure water. ■ Absolute maximum rating Top(c) = 25 °C except for temperature parameter Parameter Symbol Φef Fiber end radiant power *1 If Forward current Vr Reverse voltage Top(ld) Built-in LD temperature *2 Top(a) Operating ambient temperature *3 Tstg Storage temperature *3 — Humidity inside chassis *4 — Cooling water medium — Cooling water particles Coolant Cooling water temperature — condition (cooling water in side) — Cooling water pressure *6 — Cooling water flow rate (overall) *6 *1 Output adjusted and measured by "● Test fiber specification". *2 Temperature that is measured between pins 7 and 20 or pins 8 and 21 of the main unit sensor terminal (see "■ Pin assignment"). *3 No condensation *4 Humidity when laser is not emitted, which is measured between pins 23 and 25 of the sensor terminal (see "■ Pin assignment"). *5 Water quality must be higher than that of distilled water. *6 Including surge pressure. * Indicating limits that must not be exceeded instantaneously and shall not exceed any one value. Cooling water temperature (cooling water in side): 25 °C, cooling water flow rate 3.0 L/min Center emission wavelength Wavelength half width Operating current Operating voltage Threshold current * Output adjusted and measured by "● Test fiber specification". Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are subject to change without notice. No patent rights are granted to an

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L15856-01 - 2

Fiber Output Laser Diode Bar Module L15856-01 ■ Cooling condition and cooling environments Parameter Cooling water Cooling water temperature Cooling water consumption Cooling Cooled Cooling water hose outer diameter specification Required cooling capacity Specifications Distilled water +25 3.0 to 3.5 Water cooling 8 300 * Output adjusted and measured by "● Test fiber specification". ● Test fiber specification Fiber type Fiber core Fiber diameter Length of fiber N.A. Connectors at both ends AR coating at both ends (reflectance) ■ Pinout (D-sub 25 pins male) 1 Specifications Power input (+12...

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L15856-01 - 3

Fiber Output Laser Diode Bar Module L15856-01 Figure 1: Radiant power - Voltage characteristics (example) Figure 2: Emission spectrum (example) Radiant power Voltage 0 Figure 3: Dimensional outline (unit: mm) 4 × M6 hexagon socket head cap screw (for fixing module) Electrode terminal (-) 2 × M5 full penetration Cooling water in Applicable tube O.D.: 8 mm Cooling water out Applicable tube O.D.: 8 mm Electrode terminal (+) 2 × M4 full penetration Signal input / Output terminals Terminal: D-Sub 25 pin male 49 Laser emission direction 23.5 Optical axis height * Tolerances without indication are...

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