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Fiber Optic LAN Components High Speed VCSEL 2.5Gbps
HFE4090-321
FEATURES • Designed for drive currents between 5 and 15 mA • Optimized for low dependence of electrical properties over temperature www.DataSheet4U.com • High speed ≥1 GHz
The HFE4090-321 is a high-performance 850 nm VCSEL (Vertical Cavity Surface-Emitting Laser) packaged for high-speed data communications.
LASER RADIATION AVOID EXPOSURE TO BEAM CLASS 3B LASER PRODUCT
The HFE4090-321 is a high radiance VCSEL designed to convert electrical current into optical power that can be used in fiber optic communications and other applications. As the current varies above threshold, the light intensity increases proportionally. The HFE4090-321 is designed to be used with inexpensive silicon or gallium arsenide detectors, but excellent performance can also be achieved with some indium gallium arsenide detectors. The low drive current requirement makes direct drive from PECL (Positive Emitter Coupled Logic) or EML (Emitter Coupled Logic) gates possible and eases driver design. The HFE4090-321 is designed to interface with 50/125 and 62.5/125 µm multimode fiber. It produces circularly symmetric, non-astigmatic, narrow divergence beams that, with appropriate lensing, fiber couple all of the emitter power.
Honeywell www.honeywell.com/sensing/VCSEL
Courtesy of Steven Engineering, Inc. ! 230 Ryan Way, South San Francisco, CA 94080-6370 ! Main Office: (650) 588-9200 ! Outside Local Area: (800) 258-9200 ! www.stevenengineering.com
Fiber Optic LAN Components High Speed VCSEL 2.5Gbps
ABSOLUTE MAXIMUM RATINGS
Parameter Storage Temperature Operating Temperature Lead Solder Temperature Laser Continuous Forward Current, Heat Sinked Laser Reverse Breakdown Voltage (IR=10 µA)
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HFE4090-321
Rating -40 to +100 °C 0 to +70 °C 260 °C, 10 sec. 15 mA 5 V @ 10 µA
ELECTRO-OPTICAL CHARACTERISTICS (TA=25 oC unless otherwise stated)
VCSEL Parameters Peak Operating Current Optical Power Output Threshold Current Threshold Current Temperature Variation Slope Efficiency Slope Efficiency Temperature variation Peak Wavelength λP Temperature Variation Spectral Bandwidth, RMS Laser Forward Voltage Laser Reverse Voltage Rise and Fall Times Relative Intensity Noise Series Resistance Series Resistance Temperature Coefficient Beam Divergence Test Condition Adjustable to establish operating power IF=9mA TA = 0oC to 70oC Symbol Ipeak Po ITH ∆ ITH η ∆η /∆T λP ∆λP/∆T ∆λ VF BVRLD tr tf RIN RS dRs/dT θ Min. Typ. 9 2.4 3 Max. 20 Units mA mW mA mA mW/mA PPM/ oC nm nm/oC 0.85 2.2 130 150 -122 40 nm V V ps dB/Hz Ohms PPM/ oC Degrees 5 4 Notes 1 1 2 3
1 -1.5 0.225
5 1.5 0.6
TA = 0 C to 70 C IF=9 mA IF=9 mA IF=9 mA IF=9 mA IR=10 µA Prebias Above Threshold, 20%-80% 1 GHz BW, IF=9 mA IF=9 mA IF=9 mA, 0oC to 70oC
o
o
0.4 -6000 850 0.06 1.8 -10
830
860
18
-130 25 -3000
15
30
Notes: 1. Operating power is set by the peak operating current IPEAK=IBIAS+IMODULATION. 2. Operation at temperatures outside the specified range may result in the threshold current exceeding the maximums defined in the electro-optical characteristics table. 3. Slope efficiency is defined as ∆Po/∆IF. 4. Rise and fall times are sensitive to drive electronics. Beam divergence is defined as the total included angle between the 1/e2 intensity points.
Courtesy of Steven Engineering, Inc. ! 230 Ryan Way, South San Francisco, CA 94080-6370 ! Main Office: (650) 588-9200 ! Outside Local Area: (800) 258-9200 ! www.stevenengineering.com
2 Honeywell • www.honeywell.com/sensing/VCSEL
For application help: call 1-800-537-6945
Fiber Optic Components High Speed VCSEL 2.5Gbps VCSEL
HFE4090-321
NOTICE
Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operations section for extended periods of time may affect reliability.
TYPICAL PERFORMANCE CURVES
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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.
Threshold Current
Emitted Power
Typica l I O P , P O P
I TH ≈ = I M IN [1.1× 10 -4 (T-T M IN )2 + 1]
T M IN , I M IN
ITH
Curre nt
Te m pe ra ture
Emission Intensity vs. Wavelength: Typical 10 mA spectrum comprises multiple lines corresponding to multiple transverse modes.
NOTICE
The inherent design of this component causes it to be sensitive to electrostatic discharge (ESD). To prevent ESDinduced damage and/or degradation to equipment, take normal ESD precautions when handling this product.
DANGER
Emission Intensity
FW HM of e nve lope typica lly < 0.5 nm
The VCSEL is a class IIIb laser and should be treated as a potential eye hazard. Due to the size of the component, the applicable warning logotype, ap.