SPLBK98-40 datasheet(2/3 Pages) OSRAM

2 / 3 page

07.07.2017

DRAFT – For reference only. Subject to change – 

may be necessary in a limited number of cases.

Version 0.1

SPL BK98-40

Characteristics1) (TA = 25 °C)

Dimensions

Parameter

Symbol

Values

Unit

min.

typ.

max.

Recommended output power

Pop

250

Threshold current

Ith

-24

Operating current2)

Iop

256

280

Slope efficiency

0.97

1.07

W/A

Total conversion efficiency2)3)

ηtot

-67-

Beam divergence fast-axis2)4)



-40-

Beam divergence slow-axis2)3)4)

-7.5

Center pulse wavelength (wafer median)

λpulse

964

969

974

Spectral width (FWHM)2)

Δλ

-3-

TE Polarization2)3)

PTE

-> 95

1) All characteristics and limitations refer to pulsed measurements (1 μs pulse width at 4 kHz repetition rate) of

unmounted laser bars. The realization of the specified values in cw-mode (continuous wave mode) implies a suitable

mounting technology with a thermal resistance of Rth < 0.3 K/W. The operating emission wavelength depends on the

operating mode (cw or pulsed, ambient temperature, thermal resistance Rth) and is in general higher than the

specified center pulse wavelength λpulse. All characteristics obtained in the respective operating mode may differ

from the characteristics specified herein.

2) Specified at the typical optical output power Pop, typ.

Parameter strongly depends on bar mounting. 

Typical values for cw-operation of bars mounted with hard solder (Rth = 0.3 K/W, TA = 20°C).

Full width at 95% power content.

Parameter

Symbol

Values

Unit

min.

typ.

max.

Number of emitters

-25

Single emitter contact width

200

µm

Emitter pitch

400

µm

Fill factor

-50

Bar width

11.3

11.4

11.5

Bar height

105

115

125

µm

Resonator length

3990

4000

4010

µm

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