RLD-78NP-G1
RLD-78NP-G1 is Title AlGaAs/ double-heterojunction/ visible laser diodes manufactured by ROHM.
Features
1) Minimum variation of radiation beam angle. 2) Low droop. 3) High stability wave length. 4) Can be driven by single power supply.
1.0±0.1
φ5.6
- 0.025 Chip
(1.27)
+0
Glass window
φ4.4+0
φ3.6
N T y p e
L.D. (1)
(3)
P.D. (2)
3- φ0.45
(3)
(2) (1)
!Absolute maximum ratings (Tc=25°C)
Parameter Output
Reverse voltage
Symbol Po
Limits 5 2 30 -10~+60 -40~+85
Unit m W V V ˚C ˚C
Laser PIN photodiode
VR VR(PIN) Topr Tstg
Operating temperature Storage temperature
RLD-78PP-G1 / RLD-78NP-G1
Laser Diodes
!Electrical and optical characteristics (Ta=25°C)
Parameter Threshold current Operating current Operating voltage Differential efficiency Monitor current Parallel divergence angle Perpendicular divergence angle Parallel deviation angle Perpendicular deviation angle Emission point accuracy Peak emission wavelength Droop Symbol Ith Iop Vop η Im θ //- θ ⊥- ∆φ // ∆φ ⊥ ∆X ∆Y ∆Z λ ∆P Min. 10 15 0.1 0.3 8 25 770 Typ. 25 45 1.9 0.2 0.55 11 30 785 5 Max. 45 65 2.3 0.3 0.9 15 38 ±2 ±3 ±80 795 10 Unit m A m A V m W/m A m A deg deg deg deg µm nm % Po=3m W Po=3m W Po=3m W Po=3m W 2m W I(3m W)- I(1m W) Po=3m W Conditions
Po=3m W
- θ // and θ ⊥ are defined as the angle within which the intensity is 50% of the peak value.
!Electrical and optical curves
25˚C 40˚C 50˚C 60˚C
THRESHOLD CURRENT : Ith (m A)
RELATIVE OPTICAL INTENSITY
OPTICAL POWER : PO (m W)
100 90 80 70 60 50 40...
