HFE4080-321 Product Specification – Apr 2013
F i n i s a r
Confidential and Proprietary © 2012 Finisar Corporation. All rights reserved Rev. A1 Page 4
III. Typical Performance Curves
Emitted Power vs. Current: Power varies approximately
linearly with current above threshold.
Threshold Current vs. Temperature: Threshold
current varies parabolically with temperature; thus it can
be nearly constant for a limited temperature range.
T e m p e ra tu re
Threshold Current
T
M IN
, I
M IN
I
T H
≈
≈ ≈
≈
I
M IN
[1 . 1 × 1 0
- 4
(T -T
M I N
)
2
+ 1 ]
IV. Environmental Specifications
Parameter Symbol Min Typ Max Units Ref.
Case Operating Temperature T
op
0 70 °C
Storage Temperature T
sto
-40 85 °C
V. Regulatory Compliance
Feature Agency Standard Certificate
Number
Laser Eye
Safety
FDA/CDRH CDRH 21 CFR 1040 and Laser Notice 50 9521487
Copies of the referenced certificates are available at Finisar Corporation upon request.
Pmax
Typical operating current / power
I
th
η
