Parameter

Cond.

Symbol

LU0xxxC015

LU0xxxC065

LU0xxxC090

LU0xxxC110

Unit

LU0785C and LU0808C

Maximum output power (1)

c.w.

Pop

15

65

90

110

W

Operating current (2)

c.w.

Iop

3.8

6.8

10.5

13

A

Peak wavelength at Iop (6)

LU0785C

l

785 ± 5

785 ± 5

785 ± 5

785 ± 5

nm

LU0808C

l

808 ± 5

808 ± 5

808 ± 5

808 ± 5

nm

Spectral width (FWHM) at Iop (7)

Dl

2-6

2-6

2-6

2-6

nm

Threshold current

Ith

<0.95

<1.8

<3.0

<3.8

A

Operating voltage (max.)

Vf

11

26

24

25

V

Conversion efficiency

40

37

35

35

%

Wavelength tuning vs. temperature

l

/ T

0.3

0.3

0.3

0.3

nm/K

Wavelength tuning vs. operating current

l

/ I

1

1

1

0.7

nm/A

Weight

m

1200

1200

1200

1200

g

Thermal resistance (from bottom to internal temp. sensor) Rth

0.04

0.04

0.04

0.04

K/W

Output fiber connector (SMA905)

Core diameter of output fiber

dcore

105 **

200

400

600

µm

Fiber centricity

5

10

10

10

µm

Numerical aperture

NA

0.22

0.22

0.22

0.22

Temperature sensor

LM35, NTC (10k) or PT100/1000 (please specify)

Power monitor

PD

5-30

5-30

5-30

5-30

mV/W

Options

Option 1: Red pilot laser

C.w. output power min. value (4)

Ppilot

1-3

1-3

1-3

1-3

mW

Peak wavelength

l

pilot

635 ± 10

635 ± 10

635 ± 10

635 ± 10

nm

Operating voltage

5

5

5

5

V

Option 2: Green pilot laser

C.w. output power min. value (4)

Ppilot

1-2

1-2

1-2

1-2

mW

Peak wavelength

l

pilot

520 ± 10

520 ± 10

520 ± 10

520 ± 10

nm

Operating voltage

8

8

8

8

V

Pilot power control

Ppilot_contr

0-5

0-5

0-5

0-5

V

Option 3: Water Cooling Base Plate

Water temperature

T

<18°

<18°

<18°

<18°

°C

Water quality

Industrial Water, no DI-water, filtered particle size <0.1mm

Minimum water flux

0.3

0.5

0.6

1.5

l/min

Option 4: 1064nm back reflection filter (35dB on request) (5)

18

18

18

18

dB

(only available for 808 nm)

Option 5: Fiber sensor

Internal (resistive) fiber detection sensor signal voltage

12

12

12

12

V

A second fiber sensor is an external inductive sensor with three wire cable (Vcc=12V, GND, Signal 12/2V when fiber is plug/not plugged)

Notes: * taken at internal temperature sensor.

Avoid direct feedback from materials like mirrors, optics, processed material etc. back into laser module via the fiber cable by more than 10%.

(1) Power is measured ex fiber according to given fiber specifications including measures and tolerances of fiber and ferrules for uncoated fiber facets.

With AR coated (AR <0.7%) fiber end facet at the laser module side the power ex fiber can be increased by 20%. Avoid direct feedback from materials like mirrors, optics, processed

material etc. back into laser module via the fiber cable by more than 10%. Given value is the maximum power level. For given max. power level operating current and voltage can deviate

by max.10% from typcial values and is lower than maximum values. Please choose your laser driver design accordingly.

(2) Do not exceed maximum forward current for rated power as given above by more than 5% and if given by maximum current otherwise the laser diode may be damaged

(3) Rule of thumb: Power ex fiber decreases up to 5% (<1100nm) and up to 7% (>1400nm) every 10 °C temperature increase at internal temperature sensor. Lifetime decreases by about

factor of two every 10 °C.

(4) Red and green minimum pilot power is set at factory by customer request. Standard is 1 mW.

(5) Back reflection at 1064nm is considered as 10ns pulse with 5% d.c. max. Back reflection filter reduces power by 2% (18dB) or 4% (35dB).

(6) Narrower wavelength (+/- 3nm) on request.

Calculation example of necessary water temperature for 100 W output power:

Thermal load = Output power * (1/conversion efficiency - 1), Water temperature = internal temperature - thermal load * Thermal resistance

Example: Output power: 100 W, Conversion efficiency: 0.4, Thermal resistance: 0.07 K/W, Internal temperature: 25 °C

Thermal load = 100 W * (1/0.4 - 1) = 150 W, Water temperature = 25 °C - 150 W * 0.07 K/W = 15 °C, (water flux must be adjusted accordingly)

** LuOcean P2 in 105 µm fiber is supplied either in combination with water cooling base plate or with a copper base plate for cooled and uncoooled operation

Electrical and Optical Characteristics

Typical laser specifications at 25° C *

Lumics GmbH Berlin. This specification is subject to change without notice.

We manufacture diode lasers.

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