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VLib part of the

Keywords beginning with L

See also our glossary!

A short explanation for a term is also displayed, when you move the mouse cursor on an article keyword in the list.

The page with article article categories helps you to find more articles on a certain topical area.

You should also check out the Photonics Spotlight and the RP Software News, which you can receive as e-mail newsletters!

On this page you find all our encyclopedia articles on keywords beginning with "L". Indented lines indicate articles on related topics. Further below, you find the acronyms.

(See also: list of products for the letter L)

L band → optical fiber communications

lamp-pumped lasers

lanthanide lasers → rare-earth-doped gain media

large-core fibers

large mode area fibers

Spotlight 2007-04-28: Easier launching into fibers with large mode area?

Spotlight 2007-02-04: Continuing struggle for larger fiber mode areas

Spotlight 2006-08-10: Single-mode fibers with large mode areas

laser amplifiers → amplifiers

laser applications

Spotlight 2009-04-17: Miniature laser projectors – The next big laser thing?

laser beam quality → beam quality

laser beam shapers → beam shapers

laser beams

Spotlight 2015-02-05: Attenuating laser beams – not that easy

Spotlight 2010-04-08: Creating a top-hat laser beam focus

Spotlight 2009-11-22: The beam focus – not just a demagnified version of your beam

laser cavities → laser resonators

laser communications → free-space optical communications

laser cooling

laser cross sections → transition cross sections

laser crystals

laser crystals versus glasses

laser design

laser development

Spotlight 2017-01-27: Second opinion: a useful tool, also in laser technology!

Spotlight 2006-07-05: Laser design: side product or the basis of laser development?

laser diode bars → diode bars

laser diode drivers

laser diode modules

laser diode stacks → diode stacks

laser diodes

laser disks → thin-disk lasers

laser distance meters → distance measurements with lasers

laser dyes → dye lasers

laser dynamics

laser gain → gain

laser gain media → gain media

laser glasses → laser crystals versus glasses

laser goggles → eye protection

laser guide stars

laser hazards → laser safety

laser heads

laser-induced breakdown

laser-induced damage

laser light

laser line polarizers → thin-film polarizers

laser linewidth → linewidth

laser links → free-space optical communications

laser marking

laser media → gain media

laser microscopy

laser mirrors

Spotlight 2006-10-26: Residual transmission through highly reflecting mirrors

laser modeling

Spotlight 2017-12-04: Energy levels of solid-state gain media

Spotlight 2013-09-24: Simulation of a Q-switched Nd:YAG laser: numerical beam propagation reveals what happens, analytical reasoning explains it

Spotlight 2012-02-03: Simulation software: use commercial products or home-made software?

Spotlight 2006-11-16: Laser models – not always useful

The transparent laser

What makes a good physics model

laser modules → laser heads

laser noise

Noise in Laser Technology

Spotlight 2006-10-09: Correct specifications for laser noise – valuable but hard to obtain

Spotlight 2006-08-20: Lower noise from longer lasers

laser oscillators → lasers

laser physics

laser pointers

Spotlight 2010-01-11: Beams of laser pointers: visible in air?

Spotlight 2009-04-06: Laser pointers in soccer games: not necessarily harmless

laser powermeters → powermeters

laser pulses → pulses

laser pump chambers → pump chambers

laser radar → distance measurements with lasers

laser radiation → laser light

laser range finding → distance measurements with lasers

laser refrigeration → optical refrigeration

laser resonators

laser rods → rod lasers

laser safety

Spotlight 2007-12-18: The role of laser safety goggles

Spotlight 2007-07-06: Promoting dangerous practices in laser labs

Spotlight 2007-07-01: Nonsensical regulations undermine laser safety

Spotlight 2006-12-16: Dangerous green laser pointers

laser specifications

Spotlight 2013-12-13: Avoiding trouble with laser specifications

laser spectroscopy → spectroscopy

laser threshold

Spotlight 2007-05-10: Fundamental limitation for sigma–tau product, gain efficiency, and laser threshold

Spotlight 2007-01-21: Operation far above threshold

laser transitions

Spotlight 2011-03-13: What if solid-state laser transitions would be much stronger?

laser transmitter → free-space optical communications

laser viewing cards


Spotlight 2015-11-28: How to store light – and to understand the laser principle

Spotlight 2008-05-25: Einstein and the laser

Spotlight 2007-08-27: Distant healing of lasers

Spotlight 2007-02-22: Lossy laser cavities

Spotlight 2006-08-23: Lasers with nonlinear input–output characteristics

At which wavelength will a laser emit?

lasing without inversion

lateral modes → higher-order modes

law of Snellius → refraction

leaky modes

left-handed metamaterials → photonic metamaterials


lifetime broadening → gain bandwidth

light-emitting diodes

Spotlight 2010-09-02: Why LEDs are energy-efficient, and why they could well increase energy consumption

light forces

Spotlight 2006-10-22: Lasers attract dust to cavity mirrors

light-induced absorption → photodarkening

light intensity → optical intensity

light pulses → pulses

lightwave communications → optical data transmission

linear polarization → polarization of laser emission

linear polarizers → polarizers

linear resonators → optical resonators

linear versus ring resonators → optical resonators


Spotlight 2015-10-17: The linewidth of single-frequency lasers

Spotlight 2008-07-26: Beat signals with zero linewidth

Spotlight 2007-06-24: The plague of a narrow emission linewidth

linewidth enhancement factor

lithium niobate and tantalate → nonlinear crystal materials

long-period fiber Bragg gratings → fiber Bragg gratings

longitudinal pumping → end pumping

lower-state lifetime

LP modes


luminescence quenching → quenching

Lyot filters

Acronyms beginning with L

laser = light amplification by stimulated emission of radiation

LCF = large-core fiber

LD = laser diode

LED = light-emitting diode

LHM = left-handed metamaterials → photonic metamaterials

LIBS = laser-induced breakdown spectroscopy

LID = laser-induced damage

LIDT = laser-induced damage threshold

LMA fiber = large mode area fiber

… and if you need any more help on such topics, consider to use the consulting services of RP Photonics Consulting GmbH! There is a variety of various services available in topical areas such as lasers, amplifiers, nonlinear optics, fiber optics, ultrashort pulses, multilayer mirrors, noise and fluctuations, and other topics in photonics and optoelectronics.