Preliminary Data
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
680nm 300mW CW Laser Diode
L8048-04
FEATURES:
Highoutputpower&highbrightness
300mWCWOutputPower
200µm x 1µm Em itting Area
HighStability
LongLife
Compact
APPLICATIONS:
PumpingsourceforSolidStateLaser
Printing
MedicalInstrument
MeasuringInstrument
Marking
ABSOLUTEMAXIMUMRATINGS
(Top(c)=25℃)
Parameter Symbol Value Unit
RadiantOutputPower Øe 0.4 W
ReverseVoltage VR 2 V
OperatingTemperature Top(c) -20to+30 ℃
StorageTemperature Tstg -40to+80 ℃
Unit:mm
ELECTRICALANDOPTICALCHARACTERISTICS (Top(c)=25℃)
Value
Parameter Symbol Condition Min. Typ. Max. Unit
RadiantOutputPower Øe IF=0.6A - 0.3 - W
PeakEmissionWavelength λ
pI
F=0.6A 670 680 690 nm
SpectralRadiationHalfBandwidth ΔλI
F=0.6A - 3 - nm
ForwardVoltage VFI
F=0.6A - 2.2 2.6 V
θ
// - 8 - degreeBeamSpreadAngle:Parallel
:Vertical
θ
⊥IF=0.6A
FWHM - 30 - degree
LasingThresholdCurrent Ith - 0.25 0.35 0.45 A
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein.
680nm CW Laser Diode L8048-04
http://www.hamamatsu.com  Jan 2003
HAMAMATSU PHOTONICS K.K. Laser Group, Sales Dept.
5000, Hirakuchi, Hamakita City, Shizuoka, Japan
0
0.2
0.4
0.6
0.0 0.2 0.4 0.6 0.8
RADIANTFLUXφe
FORWARDCURRENTI
(W)
(A)
F
(Tc=25℃)
Figure 1: Radiant Output Power Figure v.s. Forward Current (Typ.)
0
20
40
60
80
100
665 670 675 680 685 690 695
RELATIVERADIANTFLUX
WAVELENGTH
(%)
(nm)
(Tc=25℃)
Figure 2: Emission Spectrum (Typ.)
Telephone: (81)53-584-0227, Fax: (81)53-584-0228, e-mail: laser-g@lsr.hpk.co.j p