proprietary ? 2014 finisar corporation. all rights reserved rev. a 3 page 1 hpdv21 2 0r - vf - zz product specification 5 0 g h z high - power photo detector h pd v 2 1 20r product features 50 ghz 3 db b andwidth 3 dbm rf output power @ 50 ghz 6 dbm rf output power @ 20 ghz high linearity (>25 dbm oip3 @ 40 ghz) no cooling required applications microwave photonics analog photonic l inks radio - over - fiber the hpdv is a compact module that is based on an advanced waveguide p hotodetector chip integrated with a bias - tee . the hp - pd utilizes a mode - converting tapered waveguide for efficient fiber - to - chip coupling and a 14 multi - mode interference (mmi) coupler. the optical signal is split by the mmi coupler into 4 equal parts and then it is fed into an array of 4 photodiodes which are connected in - parallel. it has a responsiv ity of 0.52 a/w @ 1550 nm and a high saturation photocurrent of 3 5 ma @ 20 ghz. the hp - pd is capable of delivering 6 dbm rf output power @ 20 ghz and 3 dbm @ 50 ghz. the device exhibits a high linearity with typical oip3 values above 20 dbm at a frequency of 40 ghz. ordering information r : r = internal 50 termination vf : vf = v - connector, female zz : fc = fc/ pc connector fa = f c/ a pc connector
50 ghz high - power photodetector proprietary ? 2014 finisar corporation. all rights reserved rev. a 3 page 2 i. block diagram ii. absolute maximum ratings parameter symbol condition min. typ. max. unit storage t emperature t stor age n on condensing - 40 +85 c photodiode bias v oltage v pd 0 5.2 v maximum average optical input p ower p opt contin u ous wave (cw) or 40 gb/s nrz 18.5 dbm maximum peak optical input p ower p peak pulse width 25 ps or 40 gb/s rz 24 dbm electrostatic d ischarge v esd 100pf, 1.5k hbm - 250 +250 v fiber bend r adius r bend 16 mm 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. the inherent design of this component causes it to be sensitive to electrostatic discharge (esd). to prevent esd - induced damage and/or degradation to equipment, take normal esd precautions when handling this product. v g n d o p t i c a l c o n n e c t o r o u t p 2 1 r f 1 b i a s 5 0 4 0 p f 1 0 1 0 0 n f
50 ghz high - power photodetector proprietary ? 2014 finisar corporation. all rights reserved rev. a 3 page 3 iii. environmental conditions parameter symbol condition min. typ. max. unit relative humidity r ange rh non condensing 5 85 % iv. operating conditions parameter symbol condition min. typ. max. unit case temperature r ange t case 0 +50 c wavelength r ange 1520 1570 nm average optical input p ower p opt 18 dbm photodiode bias v oltage v pd 2.8 4.0 5.0 v v. electro - optical specifications parameter symbo l condition min. typ. max. unit dc responsivity r optimum polarization 0.4 0.5 a/w polarization dependent loss pdl 0.3 0.7 db optical return loss orl 27 db 3db cut - off frequency f 3db 48 54 ghz output reflection coefficient s 22 015 ghz 1550 ghz - 15 - 3 - 10 - 1 db output 1db compression p 1db 50 ghz, v pd = 4.0v 3 dbm output 3 rd order intercept point oip3 50 ghz, v pd = 4.0v 20 dbm dark current i dark 25 200 na vi. typical performance curves fig. 1: frequency response measured with a lightwave component analyzer. fig. 2 : output ip3 at a frequency of 2 0 ghz and at a bias voltage of 4 v. - 7 - 6 - 5 - 4 - 3 - 2 - 1 0 1 0 10 20 30 40 50 60 70 response (db) frequency (ghz) 0 5 10 15 20 25 30 10 12 14 16 18 oip3 (dbm) optical input power (dbm)
50 ghz high - power photodetector proprietary ? 2014 finisar corporation. all rights reserved rev. a 3 page 4 fig. 3 (a): rf output power as a function of the optical inp ut power for a bias voltage of 4 v at a freq uency of 50 ghz . fig. 3 (b): rf output power as a function of the optical input power for a bias voltage of 4 v at a frequency of 20 ghz . vii. revision history revision date description a 1 04/09 /2014 document created. a2 06/27/2014 data and design update according m4 notes any trademarks used in this document are properties of their respective owners. finisar corporation reserves the right to make changes without notice. for more information finisar corporation 13 89 moffett park drive sunnyvale, ca 94089 - 1133 tel. 1 - 408 - 548 - 1000 fax 1 - 408 - 541 - 6138 sales@finisar.com www.finisar.com - 30 - 25 - 20 - 15 - 10 - 5 0 5 10 0 5 10 15 20 electrical output power (dbm) optical input power (dbm) - 30 - 25 - 20 - 15 - 10 - 5 0 5 10 0 5 10 15 20 electrical output power (dbm) optical input power (dbm)
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