40-gb/s X-cut LiNbO3 optical modulator with two-step back-slot structure

被引：33

作者：

Kondo, J ^{[1
]}

Kondo, A

Aoki, K

Imaeda, M

Mori, T

Mizuno, Y

Takatsuji, S

Kozuka, Y

Mitomi, O

Minakata, M

机构：

[1] NGK Insulators Ltd, Nagoya, Aichi 4678530, Japan

[2] Shizuoka Univ, Res Inst Elect, Hamamatsu, Shizuoka 4328011, Japan

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2002年 / 20卷 / 12期

关键词：

integrated optoelectronics; laser ablation; optical fiber communication; optical modulation; optical waveguides; optoelectronic devices;

D O I：

10.1109/JLT.2002.806766

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We propose a newly designed X-cut lithium niobate (LiNbO3) optical modulator. It has a two-step back-slot structure to satisfy the velocity-matching condition without the buffer layer of silicon dioxide NOD. Accordingly, this modulator can achieve low drive voltage and low optical insertion loss. In addition, the dc-drift phenomena due to the buffer layer can be suppressed. This structure is fabricated with micromachining technology using excimer laser ablation. The optical 3-dB bandwidth of the fabricated modulator reaches 30 GHz, and the drive voltage is less than 3 V at 1 kHz. From the measurement of the optical eye diagram at 43.5-Gb/s, clear eye openings were obtained. This modulator is sufficient for 40-Gb/s optical transmission systems.

引用

页码：2110 / 2114

页数：5

共 17 条

[1]

AOKI K, 2002, P CPT 02, P95

[2] Low drive voltage, broad-band LiNbO3 modulators with and without etched ridges [J].

Burns, WK ;

Howerton, MM ;

Moeller, RP ;

Krähenbühl, R ;

McElhanon, RW ;

Greenblatt, AS .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 1999, 17 (12) :2551-2555

[3] Thin layer design of X-cut LiNbO3 modulators [J].

Gheorma, IL ;

Savi, P ;

Osgood, RM .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2000, 12 (12) :1618-1620

[4]

HAGIMOTO K, 1998, P OFC 1998

[5]

HALLEMEIER P, 1999, P NFOEC 99, P26

[6]

Izutsu M., 1985, Picosecond Electronics and Optoelectronics. Proceedings of the Topical Meeting, P172

[7] High-speed and low-driving-voltage X-cut LiNbO3 optical modulator with two step backside slot [J].

Kondo, J ;

Kondo, A ;

Aoki, K ;

Takatsuji, S ;

Mitomi, O ;

Imaeda, M ;

Kozuka, Y ;

Minakata, M .

ELECTRONICS LETTERS, 2002, 38 (10) :472-473

[8]

Kondo Y, 2001, BOUNDR ELEMENT, V3, P1

[9]

MADABHUSHI R, 1998, P ECOC 98, P547

[10] Recent progress of 40 GHz high-speed LiNbO3 optical modulator [J].

Minakata, M .

ACTIVE AND PASSIVE OPTICAL COMPONENTS FOR WDM COMMUNICATION, 2001, 4532 :16-27

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