an optical clock

Optics Timeline

Optics is the physical science that studies the origin and propagation of light, how it changes, what effects it produces, and other phenomena associated with it. This "Optics Timeline" highlights important events and developments in the science of optics from prehistory to the beginning of the 21st century. It also includes related developments in other fields and related milestones in the human worldview.


1970

1970 — Optical Reading Machine patented

Jacob Rabinow

Optical Reading Machine patented

1970 — Pulse spreading of pulse in optical fiber found

Dick Dyott at Post Office and Felix Kapron of Corning

Separately find pulse spreading of a pulse traveling in an optical fiber is lowest at 1.2 to 1.3 micrometers.

1970 — Production of the first optical fiber usable in telecommunications

Robert Mauer, Donald Keck, Peter Schultz at Corning

Designed and produced the first optical fiber with optical losses low enough for wide use in telecommunications.

1970 — World's first laser-driven lighthouse opens in Australia (Point Danger)

World's first laser-driven lighthouse opens in Australia (Point Danger)

1970 — First continuous-wave room-temperature semiconductor lasers made

early May by Zhores Alferov's group at the Ioffe Physical Institute and on June 1 by Mort Panish and Izuo Hayashi at Bell Labs.

First continuous-wave room-temperature semiconductor lasers made, paving the way toward commercialization of fiber optics.

1970 — First batch of optical fibers hundreds of yards long created

Corning Glass Work scientists

Prepared the first batch of optical fiber hundreds of yards long and were able to communicate over it with crystal clear clarity. Simultaneously a group at Bell Labs developed a semiconductor laser that could operate at room temp.

1971 — Introduction of the Distributed-feedback (DFB) laser

CV Shank & H. Kogelnik

Pioneered the Distributed-feedback (DFB) laser, a laser that allows some of the output to be put back into the laser system.

1971 — Demostration of digital video over Fiber to Queen Elizabeth

Murray Ramsay of Standard Telecommunication Labs

Demonstrates digital video over fiber to Queen Elizabeth at the Centenary of the Institution of Electrical Engineers

1971 — Nobel Prize in physics awarded for holographic method

Dennis Gabor

Awarded the Nobel Prize in Physics "for his invention and development of the holographic method."

1971 — ARPAnet, the precursor to the Internet, links 23 central computer hosts.

ARPAnet, the precursor to the Internet, links 23 central computer hosts.

1971 — Invention of optical tweezers

A. Askin

Invented optical tweezers, which use a highly focused laser beam to hold onto and move microscopic particles with certain properties.

1971 — Principles of the free electron laser outlined

John M J Madey

In a paper entitled "Stimulated emission of bremsstrahlung in a periodic magnetic field", Madey outlined the principles of the free electron laser. Free electron lasers do not use transitions of electrons bound to atoms from higher energy levels to lower ones, they use electrons moving near the speed of light.

1972 — First proposal of a fiber-optic communication network

John Fulenwider

Proposes a fiber-optic communication network to carry video & other signals to homes at International Wire and Cable Symposium

1972 — Modulates diode laser at 1 Bbit/s

STL

Modulates diode laser at 1 Bbit/s

1972 — Launches the instant color camera.

Kodak

Launches the instant color camera.

1972 — Make multimode germania-doped fiber with 4 decibel per kilometer loss and much greater strength than titania-doped fiber.

Robert Maurer, Donald Keck, and Peter Schulz

Make multimode germania-doped fiber with 4 decibel per kilometer loss and much greater strength than titania-doped fiber. This breakthrough resulted in fibers that would allow the input signal to be transmitted over long distances with little loss.

1973 — Propose the use of optical fibers to transmit information via single waves.

Tappert and Hasegawa

Propose the use of optical fibers to transmit information via single waves.

1974 — Develops a new technique for making high-quality glass fiber for lightwave transmission..

John B. MacChesney and Paul B. O'Connor

Develops a new technique for making high-quality glass fiber for lightwave transmission..

1975 — Nobel prize in physics awarded

James Rainwater

Awarded the Nobel Prize in Physics "for the discovery of the connection between collective motion and particle motion in atomic nuclei and the development of the theory of the structure of the atomic nucleus based on this connection."

1975 — First commercial continuous-wave semiconductor laser operating at room temperature.

Engineers at Laser Diode Labs

First commercial continuous-wave semiconductor laser operating at room temperature. The continuous-wave operation allows the transmission of telephone conversations.

1975 — Calculated pulse spreading of an optical pulse in an optical fiber should be zero at 1.27 micrometers.

Dave Payne and Alex Gambling at Univ. of Southampton

Calculated pulse spreading of an optical pulse in an optical fiber should be zero at 1.27 micrometers.

1976 — Makes InGaAsP lasers emitting continuously at 1.25 micrometers.

J. Jim Hsieh

Makes InGaAsP lasers emitting continuously at 1.25 micrometers.

1976 — Experiments conducted on transmission through optical fiber at 1.55 micrometers.

Masaharu Horiguchi Hiroshi Osanai

Experiments conducted on transmission through optical fiber at 1.55 micrometers.

1976 — Development of first fibers with low loss at long wavelengths

Masaharu Horiguchi (NTT Ibaraki Lab) and Hiroshi Osanai (Fujikura Cable

Make first fibers with low loss -- 0.47 decibel per kilometer -- at long wavelengths, 1.2 micrometers.

1976 — Demostration of the first Free Electron Laser (FEL)

John M J Madey

A group at Stanford University demonstrated the first Free Electron Laser (FEL). Free electron lasers do not use transitions of electrons bound to atoms from higher energy levels to lower ones, they use electrons moving near the speed of light.

1976 — The first Kurzweil Reading Maching introduced

Kurzweil Reading Machine

Introduced. This included the first CCD (Charge Coupled Device) flatbed scanner and the first omni-font OCR (Optical Character Recognition) software.

1977 — Announces one-million hours (100 year) extrapolated lifetime for diode lasers.

Bell Labs

Announces one-million hours (100 year) extrapolated lifetime for diode lasers.

1977 — Transmission of first live telephone traffic through fiber optics, 6 Mbit/s, in Long Beach, California.

General Telephone & Electronics

Sends first live telephone traffic through fiber optics, 6 Mbit/s in Long Beach CA.

1978 — Discovery of Photosensitivity of Germanium-doped Silica.

KO Hill & coworkers

Discover Photosensitivity of Germanium-doped Silica.

1978 — NTT Ibaraki lab makes single-mode fiber with record 0.2 decibel per kilometer loss at 1.55 micrometers.

NTT Ibaraki Lab

Makes single-mode Fiber with the lowest loss and furthest transmission of the time.

1978 — Development of single-mode Fiber with the lowest loss and furthest transmission of the time.

NTT

Transmits 32 million bits per second through a record 53 kilometers of graded-idex fiber at 1.3 micrometers.