How Well Do You Know About Laser? Trivia Quiz

1. What does the acronym LASER stand for?

The correct answer is "Light Amplification by Stimulated Emission of Radiation". This is the correct acronym for LASER, as it accurately describes the process of light amplification through the emission of radiation.

Explanation

The correct answer is "Light Amplification by Stimulated Emission of Radiation". This is the correct acronym for LASER, as it accurately describes the process of light amplification through the emission of radiation.

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2. Which of these is not a laser type?

Semiconductor laser

Gas laser

Quark laser

DPSS laser

Dye laser

The given options include different types of lasers, such as semiconductor laser, gas laser, DPSS laser, and dye laser. However, "Quark laser" is not a recognized type of laser. Lasers typically operate by emitting light through the process of stimulated emission, but a "Quark laser" does not exist in the known classification of lasers.

Explanation

The given options include different types of lasers, such as semiconductor laser, gas laser, DPSS laser, and dye laser. However, "Quark laser" is not a recognized type of laser. Lasers typically operate by emitting light through the process of stimulated emission, but a "Quark laser" does not exist in the known classification of lasers.

3. What type of laser emits light at 694.3 nm?

Ruby laser

DPSS laser

Helium-Neon laser

Argon-Ion laser

Diode laser

A Ruby laser emits light at a wavelength of 694.3 nm. This type of laser uses a synthetic ruby crystal as the gain medium, which is excited by a flash lamp or another laser. The ruby crystal produces a red laser beam due to the transition of chromium ions within the crystal. This specific wavelength makes the Ruby laser suitable for various applications, including dermatology, tattoo removal, and scientific research.

Explanation

A Ruby laser emits light at a wavelength of 694.3 nm. This type of laser uses a synthetic ruby crystal as the gain medium, which is excited by a flash lamp or another laser. The ruby crystal produces a red laser beam due to the transition of chromium ions within the crystal. This specific wavelength makes the Ruby laser suitable for various applications, including dermatology, tattoo removal, and scientific research.

4. What wavelength is the common green laser?

405 nm

473 nm

513 nm

532 nm

650 nm

The common green laser has a wavelength of 532 nm.

Explanation

The common green laser has a wavelength of 532 nm.

5. What does the acronym DPSS stand for?

The acronym DPSS stands for Diode Pumped Solid State. This refers to a type of laser in which the active medium is a solid-state material that is pumped by a diode laser. The diode laser emits light that is absorbed by the solid-state material, causing it to become excited and emit laser light. This technology is commonly used in various applications such as laser pointers, laser engraving, and scientific research.

Explanation

The acronym DPSS stands for Diode Pumped Solid State. This refers to a type of laser in which the active medium is a solid-state material that is pumped by a diode laser. The diode laser emits light that is absorbed by the solid-state material, causing it to become excited and emit laser light. This technology is commonly used in various applications such as laser pointers, laser engraving, and scientific research.

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6. Which of these is a beam mode (Transverse mode) ?

Class 3B

TEM00

PE-00

Cubic

1000

TEM00 is a beam mode or transverse mode. TEM stands for Transverse Electro-Magnetic, and the subscript 00 indicates that it is the fundamental mode with a Gaussian intensity profile. This mode has a symmetric intensity distribution and a single peak in the center, making it the most commonly used and desired mode in many applications including laser technology and optical communications.

Explanation

TEM00 is a beam mode or transverse mode. TEM stands for Transverse Electro-Magnetic, and the subscript 00 indicates that it is the fundamental mode with a Gaussian intensity profile. This mode has a symmetric intensity distribution and a single peak in the center, making it the most commonly used and desired mode in many applications including laser technology and optical communications.

7. In what country are the vast majority of lasers manufactured?

Japan

China

USA

India

Germany

China is the correct answer because it is known to be the leading manufacturer of lasers in the world. China has a strong manufacturing industry and is known for its production capabilities in various sectors, including technology. The country has a large number of laser manufacturing companies and is responsible for producing a significant portion of the world's lasers. Additionally, China has made significant advancements in laser technology and has a competitive edge in terms of cost and production capacity, making it the primary location for laser manufacturing.

Explanation

China is the correct answer because it is known to be the leading manufacturer of lasers in the world. China has a strong manufacturing industry and is known for its production capabilities in various sectors, including technology. The country has a large number of laser manufacturing companies and is responsible for producing a significant portion of the world's lasers. Additionally, China has made significant advancements in laser technology and has a competitive edge in terms of cost and production capacity, making it the primary location for laser manufacturing.

8. What wavelength is the lasers from diodes from blu-ray burners?

266 nm

405 nm

445 nm

473 nm

500 nm

The lasers from diodes in Blu-ray burners emit light with a wavelength of 405 nm.

Explanation

The lasers from diodes in Blu-ray burners emit light with a wavelength of 405 nm.

9. What is the ideal current of a PHR-803t laser diode?

30-40 mA

100-120 mA

180 - 200 mA

450 - 500 mA

1 - 1,2 A

The ideal current for a PHR-803t laser diode is 100-120 mA. This range of current ensures that the laser diode operates within its optimal performance and efficiency levels. Going below or above this range may result in reduced output power or even damage to the diode. Therefore, it is important to maintain the current within the specified range for the proper functioning of the laser diode.

Explanation

The ideal current for a PHR-803t laser diode is 100-120 mA. This range of current ensures that the laser diode operates within its optimal performance and efficiency levels. Going below or above this range may result in reduced output power or even damage to the diode. Therefore, it is important to maintain the current within the specified range for the proper functioning of the laser diode.

10. What color does the LPC-815 diode lase?

Green

Red

Blue

Infrared

Violet

The LPC-815 diode lases in the red color.

Explanation

The LPC-815 diode lases in the red color.

11. What are normal scanning speeds of scanning galvos in laser projectors?

100 -1500 pps

2 - 5 kpps

8 - 60 kpps

100 - 200 kpps

1 - 2 mpps

The normal scanning speeds of scanning galvos in laser projectors range from 8 to 60 kpps. Scanning galvos are used to control the movement of laser beams in laser projectors, allowing for the creation of images or patterns. The given answer suggests that the typical scanning speeds fall within this range, indicating that it is a common and accepted range for scanning galvos in laser projectors.

Explanation

The normal scanning speeds of scanning galvos in laser projectors range from 8 to 60 kpps. Scanning galvos are used to control the movement of laser beams in laser projectors, allowing for the creation of images or patterns. The given answer suggests that the typical scanning speeds fall within this range, indicating that it is a common and accepted range for scanning galvos in laser projectors.

12. Which of these is not a laser manufacturer?

BOB Laser

CNI

Laserglow

Viasho

CrystaLaser

Laserglow is not a laser manufacturer. Although the other options listed are all laser manufacturers, Laserglow is a company that specializes in the distribution and retail of lasers, rather than manufacturing them.

Explanation

Laserglow is not a laser manufacturer. Although the other options listed are all laser manufacturers, Laserglow is a company that specializes in the distribution and retail of lasers, rather than manufacturing them.

13. Which of these is not a common laser diode driver (PSU)?

RKCSTR Micro-drive

Flexmod

Micro Flexdrive

Micro Boostdrive

Micro Laserdrive

The given correct answer is "Micro Laserdrive". The other options mentioned, RKCSTR Micro-drive, Flexmod, Micro Flexdrive, and Micro Boostdrive, are all common laser diode drivers (PSUs). However, the Micro Laserdrive is not a commonly used laser diode driver.

Explanation

The given correct answer is "Micro Laserdrive". The other options mentioned, RKCSTR Micro-drive, Flexmod, Micro Flexdrive, and Micro Boostdrive, are all common laser diode drivers (PSUs). However, the Micro Laserdrive is not a commonly used laser diode driver.

14. Who invented the first laser?

Gordon Gould

Isaac Newton

Charles Townes

Ronald Pfefferberg

Charles McKie

Gordon Gould is credited with inventing the first laser. He developed the concept of the laser and obtained a patent for it in 1959. Charles Townes also played a significant role in the invention of the laser. He built the first working laser prototype, known as the maser, in 1954. While both Gould and Townes made important contributions, Gould is specifically recognized as the inventor of the laser due to his patent and his work in developing the concept.

Explanation

Gordon Gould is credited with inventing the first laser. He developed the concept of the laser and obtained a patent for it in 1959. Charles Townes also played a significant role in the invention of the laser. He built the first working laser prototype, known as the maser, in 1954. While both Gould and Townes made important contributions, Gould is specifically recognized as the inventor of the laser due to his patent and his work in developing the concept.

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