主题：【原创】光纤通信的襁褓年月 -- nua

查了一下这本书的作者,他给出了一个光纤通讯襁褓到自己走路年月的时间表

http://www.sff.net/people/jeff.hecht/chron.html

CISCO也在此基础上加了光纤通讯成熟后的具体规格

http://www.cisco.com/en/US/prod/collateral/modules/ps5455/white_paper_c11-463661.html

但是空掉了一下几个重要事件:

1968: Kao and M. W. Jones measure intrinsic loss of bulk fused silica at 4 decibels per kilometer, the first evidence of ultratransparent glass, prompting Bell Labs to seriously consider fiber optics

June 30, 1970: AT&T introduces Picturephone in Pittsburgh. The telephone monopoly plans to install millimeter waveguides to provide the needed extra capacity.

Summer 1970: Maurer, Donald Keck, Peter Schultz, and Frank Zimar at Corning develop a single-mode fiber with loss of 17 dB/km at 633 nanometers by doping titanium into fiber core.

September 30, 1970: Maurer announces results at London conference devoted mainly to progress in millimeter waveguides.

1971-1972: Unable to duplicate Corning's low loss, Bell Labs, the University of Southampton, and CSIRO in Australia experiment with liquid-core fibers.

February 1975: Bell completes installation of 14 kilometers of millimeter waveguide in New Jersey. After tests, Bell declares victory and abandons the technology.

BELL 实验室到1970年,光纤已经到达高锟的"低于20dB/公里损耗"后,仍然不相信光纤是未来通讯的载体,继续微波空心导管是未来通讯载体,直到1975年.