In this study, we present a 10-Gb/s coaxial-type laser modules package with signal input of single-end and differential-end designs, separately. By using the method of coaxial-type package with low-cost and high-performance characteristics, it can be applied to high-speed optical fiber communication, fiber to the home (FTTH), and passive-optical-network (PON) applications.
Because the structure of traditional TO-Can header without proper modification, the laser module with single-end signal input design results in poor RF transmission characteristic. The notch filter effect induced by the parasitic inductance of the long lead and wires is becoming the traditional TO-Can¡¦s one of the major factors.
A coaxial-type laser module with commercial TO-Can materials and an internal matching resistor of 18 ohms to reduce the signal reflection is used in this work. In single end signal modulation, The proposed coaxial laser module is fitted with an internal matching resistor of 18£[ to reduce the signal reflection. With the transmission signal of 231-1 and 10Gb/s operation, the coaxial-type laser module with single-end input can meet the mask of OC-192 standard and 26% eye mask margin. The laser module with the design of differential-end signal input that has two reverse voltage V+ and V- can reduce effect of the common-mode noise. Because the differential-signal input with shunt connection was adopted, the matching resistor of 39ohm was used for impedance matching. In addition, the laser module with common-mode signal input was also used to compare. The laser module with common-mode signal input was measured with ER (extinction-ratio) of 3.5dB and Jitter of 23ps. Due to the laser submount without optimization design, the laser module with differential-mode signal input can not be measured a good result.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0714109-190856 |
| Date | 14 July 2009 |
| Creators | Huang, Zhi-jia |
| Contributors | Ming-Chang Shih, Yi-Chung Huang, Tsong-Sheng Lay, Wood-Hi Cheng, Tien-Tsorng Shih |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0714109-190856 |
| Rights | not_available, Copyright information available at source archive |
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