1. ECE 135 – Group 3 Presentation 4 Bryan Chavez with Pat Cleary & Kevin Parker February 10 th, 2005 February 10 th, 2005

2. Work Summary Further Research into VCSELs Researched ROSA Solutions in place of PDs Four Corners Analysis for multiple candidate VCSELs Contact vendors Further Optical Link Budgeting Test and Build Tx Board

3. GANTT Chart

4. Background Work for Four Corners and Optical Link Budget Eye safe limit → P max = 1 mW From the 802.3 standard → extinction ratio = 9dB Thus we see that P min = P max *10^(-9/10) P min =.12589 mW Maximum Link Power Budget Loss at Rx from 802.3 Standard = 7.5 dB

5. VCSEL Four Corner Analysis (A) HFE439x-521 ManufacturerPartI_th (mA) η (mW/mA) I_tot(MAX) (mA) I_tot(MIN) (mA)I_bias (mA)I_mod (mA) Advanced Optical Components (2.5G) SCHFE439x-5410.50.0425.50003.647314.573621.8528 Advanced Optical Components (2.5G) SCHFE439x-5412.50.0427.50005.647316.573621.8528 Advanced Optical Components (2.5G) SCHFE439x-5410.50.166.75001.28684.01845.4632 Advanced Optical Components (2.5G) SCHFE439x-5412.50.168.75003.28686.01845.4632

6. VCSEL Four Corner Analysis (B) ManufacturerPartI_th (mA) η (mW/mA)I_tot(MAX) (mA)I_tot(MIN) (mA)I_bias (mA)I_mod (mA) Emcore (2.5) TO - 460.50.25.50001.12953.31474.3706 Emcore (2.5) TO - 462.50.27.50003.12955.31474.3706 Emcore (2.5) TO – 460.50.43.00000.81471.90742.1853 Emcore (2.5) TO - 462.50.45.00002.81473.90742.1853 TO - 46

7. VCSEL Four Corner Summary Part Current Requirements Connector?NotesPrice AOkLC LC Only USA $7.25 (1k+) $14.50 (1-999) BExcellent LC or SC LC Available SC? USA Unknown (1k+) Free (small quantities)

8. ROSA Datasheet ROSAMin (V/W)Typical (V/W)Max (V/W)NotesPrice Luxnet (1.25) (LC or SC) 5000 Taiwan ? Optowell (1.25 or 2.5) (LC or SC) 2000 Taiwan ? AOCtech (1.25) (SC)PTCM966-SC.5 A/W? USA ? Advanced Optical Components (up to 2.5) (SC)HFD3381-102 1400 USA $5 (1-999) $10 (>1k) Advanced Optical Components (up to 2.5) (LC)HFD3180-108150025003500 USA $5 (1-999) $10 (>1k)

9. Draft Optical Link Budget Advanced Optical Components HFE419x-541 with HFD3180-108 ROSA Ith (mA) 1.8 DC Bias of laser (mA) 10.29 Slope Efficiency (mW/mA) 0.125 Modulation Current of Tx (mA) 29.1369 Range of Power Output (mW) 0.12589 - 1.0 Range of Power at Rx (mW) – 7.5 dB Loss.02239 -.17783 Voltage Output Range from ROSA (mV) 55.98 – 444.58 Voltage Input Range for Maxim 3264 (mV) 5 - 1200

10. Tx Board Construction

11. Tx Board Performance 0 dB Attenuation BER: < 10^-9 1 Minute Duration

12. Tx Board Performance 10 dB Attenuation BER: < 10^-9 1 Minute Duration

13. Tx Board Performance 20 dB Attenuation BER: < 2x10^-7 1 Minute Duration

14. Tx Board Performance 30 dB Attenuation BER: NO SIGNAL 1 Minute Duration

15. Links for VCSELs & ROSAs http://www.advancedopticalcomponents.com/do cuments/HFE438x-521.pdf http://www.emcore.com/assets/fiber/TO462.5Gb ps.pdf http://www.advancedopticalcomponents.com/pro duct/documents/HFD3381-102.pdf http://www.advancedopticalcomponents.com/pro duct/documents/HFD3180-108.pdf

16. Future Work Order VCSEL/ROSA Build and Test Rx Board Finalize Optical Link Budget Design Board 1 Schematic Design Board 1 Layout