What is optical injection locking?
Optical injection locking (OIL) is a mechanism where a free running slave laser is injected with coherent light from a master laser which causes the slave laser to oscillate at the master’s frequency and follow the master’s phase. OIL has previously been demonstrated at low injection powers.
What is injection frequency?
Injection (aka frequency) pulling occurs when an interfering frequency source disturbs an oscillator but is unable to injection lock it. The frequency of the oscillator is pulled towards the frequency source as can be seen in the spectrogram.
What is injection seeding?
Injection seeding is a technique which is mostly applied to pulsed lasers and optical parametric oscillators, usually with the main goal of achieving emission with a narrower optical bandwidth (linewidth). Injection seeding does not require an exact match of the seed laser frequency and a resonance of the slave laser.
What is used for injection?
An injection (often and usually referred to as a “shot” in US English, a “jab” in UK English, or a “jag” in Scottish English and Scots) is the act of administering a liquid, especially a drug, into a person’s body using a needle (usually a hypodermic needle) and a syringe.
How does a seed laser work?
A seed laser is a laser the output which is injected into some amplifier or another laser. Instead of injection into an amplifier, a single-frequency seed beam can be sent into another laser (slave laser) or into an optical parametric oscillator in order to achieve narrowband emission via injection seeding.
What are 3 ways to give injections?
The three main types of injections include:
- Subcutaneous (into the fat layer between the skin and muscle)
- Intramuscular (deep into a muscle)
- Intravenous (through a vein)
What is laser seed?
A seed laser is a laser whose output is injected into some amplifier or another laser. Seed lasers are typically combined with an amplifier in a master oscillator power amplifier configuration used for generating an output with high power.
What size needle is used for intramuscular injection?
A 1” needle is sufficient in adults weighing 130–152 lbs (60–70 kg). A 1–1½” needle is recommended in women weighing 152–200 lbs (70–90 kg) and men weighing 152–260 lbs (70–118 kg). A 1½” needle is recommended in women weighing more than 200 lbs (90 kg) or men weighing more than 260 lbs (118 kg).
Is intramuscular injection faster than intravenous?
This route of administration, like intramuscular injection, absorption and requires is somewhat slower than the IV route.
What injection is given at a 45 degree angle?
Subcutaneous injections can be given straight in at a 90 degree angle or at a 45 degree angle.
What is the most common injection?
The three main types of injections include:
- Subcutaneous (into the fat layer between the skin and muscle)
- Intramuscular (deep into a muscle)
- Intravenous (through a vein)
When does injection locking occur in a frequency range?
The frequency range in which injection locking happens is called the locking range. Injection locking also happens when ω i is close to the harmonic or subharmonic of ω 0, i.e., nω 0 or 1/nω 0. They are called harmonic (or superharmonic) and subharmonic injection locking, respectively.
Why does an injection lock not lock the oscillator?
The frequency of the oscillator is pulled towards the frequency source as can be seen in the spectrogram. The failure to lock may be due to insufficient coupling, or because the injection source frequency lies outside the locking window of the oscillator.
Which is an advantage of an ILFD over a digital divider?
An ILFD has inherent advantage in both speed and power dissipation compared to a digital divider. It is fundamentally an oscillator at the subharmonic frequency of the input signal, which effectively lowers the speed requirement for the process technology by n-fold.
Why is injection locking used in television sets?
Injection locking. Injection locking has been used in beneficial and clever ways in the design of early television sets and oscilloscopes, allowing the equipment to be synchronized to external signals at a relatively low cost. Injection locking has also been used in high performance frequency doubling circuits.